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U.S. Census Bureau · 2025 Population Estimates Program (PEP)

Kentucky County Population — 2025 PEP

July 1, 2025 resident population estimates for 120 counties. State total (sum of these county estimates): 4,606,864 persons.

Separate 2025 TIGER/Line county boundaries validate county identity; these are not ACS 2024 survey estimates.

Official Vintage 2025 county identities and unsimplified TIGER coordinates; separate-period ACS housing is joined only by exact full GEOID. Original 2020 counts require separately evidenced compatible geography; incompatible observations remain null with reasons. The revised April estimates base is not an original census count; no boundary allocation is invented.

Source and downloads

2025 Census PEP county estimates, 2020–2025 series; counts are persons, migration counts are persons, published rates are per 1,000, and unavailable values remain null (not zero). 2020 rates are unavailable for the partial-year interval. County totals and characteristics are verified against the pinned raw Census CSV receipts and independent 2025 county geometry.

Official Census PEP county source · Download JSON · Download CSV · Download source metadata

Official state totals and county summaries

Official NST July 1, 2025 state total: 4,606,864 persons (SUMLEV 040, PEP Vintage 2025). County sum: 4,606,864 persons; comparison status: equal.

Official NST July 2020: 4,508,271 persons; July 2020–July 2025 change: +98,593 persons; growth: 2.186936 percent (denominator: official July 2020 population).

County July 2024–July 2025: Growing: 81 · Shrinking: 39 · Unchanged: 0 · Missing: 0. Median county growth: 0.337680 percent.

Largest county: Jefferson County (GEOID 21111): 795222 persons.

Fastest county growth: Nicholas County (GEOID 21181): 2.541280 percent.

Greatest numeric increase: Warren County (GEOID 21227): 2809 persons.

no minimum population; missing excluded per measure; median of county percentages, not population weighted; equal values use ascending full GEOID.

Official state demographics

Resident population · SUMLEV 040 · July 1, 2025 · Census PEP Vintage 2025. Denominator for every share: 4,606,864 resident persons. Six exclusive race groups; Hispanic origin overlaps race and must not be added to it. Release: June 2026; exact day unproved; PEP estimates have no ACS sampling MOE.

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Official state age, sex, race and overlapping Hispanic origin
MeasureCountShare
Female2,340,727 persons50.809553 percent
Male2,266,137 persons49.190447 percent
Ages 18–24426,651 persons9.261202 percent
Ages 25–441,172,256 persons25.445856 percent
Ages 45–641,123,155 persons24.380034 percent
Ages 65 and older868,019 persons18.841863 percent
Under 181,016,783 persons22.071044 percent
American Indian or Alaska Native alone24,412 persons0.529905 percent
Asian alone99,980 persons2.170240 percent
Black or African American alone399,758 persons8.677443 percent
Native Hawaiian or other Pacific Islander alone6,028 persons0.130848 percent
Two or more races188,573 persons4.093305 percent
White alone3,888,113 persons84.398259 percent
Hispanic (any race)280,076 persons6.079537 percent
Not Hispanic4,326,788 persons93.920463 percent

Official state median age: 39.5 years. Published state SYASEX median age; not a county aggregation, not ACS.

Download all state demographic observations (CSV)

Revised April 1, 2020 estimates base (official NST): 4,506,287 persons; county base sum: 4,506,287 persons; comparison: equal. This is not the original decennial census count.

Original April 1, 2020 Census count: 120 compatible counties; 0 unavailable. Published Census county centers-of-population POPULATION, original 2020 Gazetteer and official 2020–2025 geographic-change evidence; no boundary allocation. Original count, revised April estimates base and July 2020 estimate are separate observations. Documentation: November 2021; exact file release day unproved; retrieval is not release. Official original count source. Original 2020 Gazetteer identity plus Census geographic-change notes 2014–2025; no county-level change recorded from 2020 onward, exact full modern name, and original count required. Any recorded county-level change or referenced counterparty is conservatively unavailable, including unresolved internal redistricting. Same GEOID alone is insufficient. Not a claim of identical cartographic coordinates; no invented allocations.

Source release date unavailable: retained pins do not attest an official release date; retrieval is not release. Reference dates and Vintage 2025 are explicit; no current-vintage refresh is implied.

County population and demographic explorer

Choose a measure, observation year and county without downloading boundaries. Rankings, search, trends and CSV work without a map. Load map explicitly to download the full, unsimplified 2025 TIGER boundaries; this defers rather than removes their payload. The table remains available without JavaScript.

PEP population · persons · July 1, 2025. Denominator: none. Calculation/source: CO POPESTIMATEy. Vintage 2025; null with metric_status reason; measured zero remains zero; no imputation.

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Selected county demographic breakdown

July 1, 2025 · Jefferson County (GEOID 21111). Same-period county population is the share denominator. Hispanic origin overlaps race; do not add origin to race counts. Other overlapping classifications are not additive. Official county median age is from PEP AGESEX MEDIAN_AGE_TOT, not ACS.

County demographics: counts, shares and official median age
Classification / sourceCount or statisticShare / status
Sex · PEP male385,121 persons48.429369 percent
Sex · PEP female410,101 persons51.570631 percent
Age bands · PEP under18172,023 persons21.632073 percent
Age bands · PEP age18 2464,888 persons8.159734 percent
Age bands · PEP age25 44224,060 persons28.175780 percent
Age bands · PEP age45 64186,958 persons23.510164 percent
Age bands · PEP age65plus147,293 persons18.522249 percent
Race alone (partition) · PEP white alone536,897 persons67.515360 percent
Race alone (partition) · PEP black alone179,727 persons22.600859 percent
Race alone (partition) · PEP aian alone4,401 persons0.553430 percent
Race alone (partition) · PEP asian alone34,468 persons4.334387 percent
Race alone (partition) · PEP nhpi alone918 persons0.115439 percent
Race alone (partition) · PEP two or more38,811 persons4.880524 percent
Hispanic origin (overlaps race) · PEP hispanic any race90,229 persons11.346391 percent
Hispanic origin (overlaps race) · PEP not hispanic704,993 persons88.653609 percent
Other overlapping classifications (not additive) · PEP white alone or combination573,263 persons72.088423 percent
Other overlapping classifications (not additive) · PEP not hispanic white alone462,606 persons58.173189 percent
Official county median age · AGESEX MEDIAN_AGE_TOT38.9 yearsNot a share; not ACS or an average of county medians

Use Ctrl/Command or Shift to select multiple counties. The following trend uses exact resident persons, not percentages; county size affects the scale. Missing observations break lines; the revised April estimates base is a separate dashed partial interval.

2025 county population rankings

All 120 county estimates are present without JavaScript, ranked by 2025 population (largest first). Signed changes compare July 1, 2024 to July 1, 2025. Unavailable is not zero; equal values break ties by GEOID (ascending).

Showing all 120 counties; ranked by 2025 population, descending.

Kentucky County Population — 2025 PEP — July 1, 2025; rank reflects the selected ordering
RankCountyGEOIDPopulation (persons)Signed change (persons)Signed change (percent)
1Jefferson County21111795,222+1056 persons+0.132970%
2Fayette County21067329,751+2680 persons+0.819394%
3Kenton County21117175,779+1338 persons+0.767022%
4Warren County21227149,375+2809 persons+1.916543%
5Boone County21015145,316+1826 persons+1.272563%
6Hardin County21093113,482+838 persons+0.743937%
7Daviess County21059104,898+623 persons+0.597459%
8Madison County21151101,696+2096 persons+2.104418%
9Campbell County2103795,441+1387 persons+1.474685%
10Bullitt County2102986,454+689 persons+0.803358%
11Oldham County2118570,986+386 persons+0.546742%
12Christian County2104770,115-1321 persons-1.849208%
13McCracken County2114567,553-179 persons-0.264277%
14Pulaski County2119967,384+425 persons+0.634717%
15Laurel County2112563,746+502 persons+0.793751%
16Scott County2120962,262+538 persons+0.871622%
17Jessamine County2111357,147+831 persons+1.475602%
18Pike County2119554,721-637 persons-1.150692%
19Franklin County2107352,649+252 persons+0.480944%
20Shelby County2121151,243+761 persons+1.507468%
21Nelson County2117949,036+427 persons+0.878438%
22Boyd County2101947,751-197 persons-0.410862%
23Barren County2100945,641+229 persons+0.504272%
24Hopkins County2110745,127+106 persons+0.235446%
25Henderson County2110144,255-93 persons-0.209705%
26Calloway County2103539,421+519 persons+1.334122%
27Clark County2104937,888+204 persons+0.541344%
28Whitley County2123537,297+92 persons+0.247279%
29Graves County2108337,050+252 persons+0.684820%
30Greenup County2108935,213-37 persons-0.104965%
31Floyd County2107134,401-229 persons-0.661276%
32Marshall County2115731,659+4 persons+0.012636%
33Boyle County2102131,632+335 persons+1.070390%
34Meade County2116330,699+202 persons+0.662360%
35Muhlenberg County2117730,634+62 persons+0.202800%
36Knox County2112129,532-120 persons-0.404694%
37Montgomery County2117328,822+9 persons+0.031236%
38Logan County2114128,669+220 persons+0.773314%
39Woodford County2123927,883+199 persons+0.718827%
40Grayson County2108527,406+227 persons+0.835204%
41Taylor County2121726,763-48 persons-0.179031%
42Perry County2119326,555-250 persons-0.932662%
43Grant County2108126,181+449 persons+1.744909%
44Carter County2104326,149-46 persons-0.175606%
45Lincoln County2113725,353+300 persons+1.197461%
46Anderson County2100525,225+267 persons+1.069797%
47Harlan County2109524,725-321 persons-1.281642%
48Rowan County2120524,476-50 persons-0.203865%
49Ohio County2118323,934+34 persons+0.142259%
50Mercer County2116723,733+234 persons+0.995787%
51Bell County2101322,829-176 persons-0.765051%
52Allen County2100322,536+441 persons+1.995927%
53Johnson County2111522,051-82 persons-0.370488%
54Breckinridge County2102721,503+239 persons+1.123965%
55Spencer County2121520,998+291 persons+1.405322%
56Simpson County2121320,788+370 persons+1.812127%
57Bourbon County2101720,243-94 persons-0.462212%
58Hart County2109920,117+207 persons+1.039679%
59Marion County2115520,115+117 persons+0.585059%
60Letcher County2113319,952-255 persons-1.261939%
61Harrison County2109719,627+160 persons+0.821904%
62Wayne County2123119,597+34 persons+0.173797%
63Clay County2105119,465-90 persons-0.460240%
64Adair County2100119,423+188 persons+0.977385%
65Russell County2120718,608+59 persons+0.318076%
66Garrard County2107918,207+259 persons+1.443058%
67McCreary County2114717,124+201 persons+1.187733%
68Mason County2116116,936+22 persons+0.130070%
69Henry County2110316,447+245 persons+1.512159%
70Casey County2104516,205+152 persons+0.946864%
71Rockcastle County2120316,148-64 persons-0.394769%
72Fleming County2106915,787+139 persons+0.888292%
73Lawrence County2112715,765-60 persons-0.379147%
74Larue County2112315,184+28 persons+0.184745%
75Pendleton County2119114,800-1 persons-0.006756%
76Trigg County2122114,512-1 persons-0.006890%
77Morgan County2117514,415+182 persons+1.278718%
78Estill County2106513,962+17 persons+0.121907%
79Jackson County2110913,325+31 persons+0.233188%
80Knott County2111913,321-142 persons-1.054743%
81Bath County2101113,176+206 persons+1.588281%
82Todd County2121912,972+185 persons+1.446782%
83Webster County2123312,929+57 persons+0.442822%
84Lewis County2113512,901-11 persons-0.085192%
85Union County2122512,839-288 persons-2.193951%
86Powell County2119712,812-49 persons-0.380997%
87Edmonson County2106112,749+87 persons+0.687095%
88Caldwell County2103312,609+21 persons+0.166826%
89Breathitt County2102512,558-193 persons-1.513607%
90Butler County2103112,520+40 persons+0.320513%
91Washington County2122912,368+58 persons+0.471162%
92Green County2108711,644+96 persons+0.831313%
93Owen County2118711,601+136 persons+1.186219%
94Monroe County2117111,191+35 persons+0.313733%
95Carroll County2104111,141+30 persons+0.270003%
96Magoffin County2115311,110-61 persons-0.546057%
97Martin County2115910,697+14 persons+0.131049%
98Metcalfe County2116910,583+46 persons+0.436557%
99Leslie County211319,627-122 persons-1.251410%
100Clinton County210539,139-33 persons-0.359791%
101Lyon County211439,123+46 persons+0.506775%
102McLean County211499,064-17 persons-0.187204%
103Hancock County210919,050+32 persons+0.354846%
104Livingston County211398,863+16 persons+0.180852%
105Gallatin County210778,840+76 persons+0.867184%
106Crittenden County210558,807-168 persons-1.871866%
107Trimble County212238,701+62 persons+0.717676%
108Bracken County210238,511+49 persons+0.579059%
109Nicholas County211817,949+197 persons+2.541280%
110Ballard County210077,594-14 persons-0.184017%
111Lee County211297,297+4 persons+0.054847%
112Elliott County210637,265-5 persons-0.068776%
113Menifee County211656,430+101 persons+1.595829%
114Wolfe County212376,298+35 persons+0.558838%
115Fulton County210756,218-42 persons-0.670927%
116Cumberland County210575,992-45 persons-0.745403%
117Carlisle County210394,747-17 persons-0.356843%
118Hickman County211054,372-18 persons-0.410023%
119Owsley County211893,932+2 persons+0.050891%
120Robertson County212012,325-27 persons-1.147959%

County population trend · 2020–2025

Resident population (persons), not ACS housing. April 1, 2020 estimates base is distinct from the July 1, 2020 estimate. The April–July 2020 change is partial-year; the July 2020–July 2021 interval is the first July-to-July comparison. No 2020 annual rate is shown. Missing observations are unavailable, never zero.

Showing Jefferson County (GEOID 21111). Select a county on the map or in the rankings table to update this trend.

Horizontal axis: year (2020–2025); vertical axis: resident population (persons). The 2020 base is a separate April 1 observation; July 1 estimates run from 2020 through 2025. Focus the chart viewport and use Left/Right arrows to scroll on narrow screens. Complete axis labels stay here outside the scrolling chart; the table gives exact values and availability.

Population observations for Jefferson County (GEOID 21111), persons
DatePopulation (persons)Interval
April 1, 2020 base782,962Estimates base; not July 1
July 1, 2020782,866April–July partial-year; no annual rate
July 1, 2021777,774July 2020–July 2021 comparison
July 1, 2022778,999July-to-July estimate
July 1, 2023784,607July-to-July estimate
July 1, 2024794,166July-to-July estimate
July 1, 2025795,222July-to-July estimate

County population and median home value · different vintages

Each point pairs a county’s PEP July 1, 2025 resident population (persons) with its ACS 2024 5-year median owner-occupied home value (B25077, U.S. dollars). These are different reference periods and different statistical programs. This descriptive comparison does not imply causality or matched vintages. Suppressed, missing or invalid ACS estimates are unavailable, not zero and not plotted. A valid zero remains zero.

The exact-value table below works without JavaScript; chart loading requires JavaScript.

Select a county using the map or rankings to coordinate the comparison.

County comparison: PEP July 1, 2025 population (persons) and ACS 2024 5-year median owner-occupied home value (U.S. dollars); unavailable values identified
CountyGEOIDPEP July 1, 2025 population (persons)ACS 2024 5-year median home value (U.S. dollars)
Adair County2100119,423$150,800
Allen County2100322,536$192,300
Anderson County2100525,225$225,100
Ballard County210077,594$145,800
Barren County2100945,641$178,000
Bath County2101113,176$129,800
Bell County2101322,829$89,000
Boone County21015145,316$277,300
Bourbon County2101720,243$229,300
Boyd County2101947,751$130,700
Boyle County2102131,632$209,900
Bracken County210238,511$125,000
Breathitt County2102512,558$70,300
Breckinridge County2102721,503$156,700
Bullitt County2102986,454$247,200
Butler County2103112,520$111,100
Caldwell County2103312,609$118,500
Calloway County2103539,421$183,200
Campbell County2103795,441$252,000
Carlisle County210394,747$120,400
Carroll County2104111,141$140,900
Carter County2104326,149$132,800
Casey County2104516,205$136,300
Christian County2104770,115$173,600
Clark County2104937,888$205,800
Clay County2105119,465$90,700
Clinton County210539,139$122,200
Crittenden County210558,807$127,300
Cumberland County210575,992$141,100
Daviess County21059104,898$199,900
Edmonson County2106112,749$160,300
Elliott County210637,265$123,500
Estill County2106513,962$119,500
Fayette County21067329,751$293,500
Fleming County2106915,787$134,700
Floyd County2107134,401$98,700
Franklin County2107352,649$216,600
Fulton County210756,218$79,100
Gallatin County210778,840$178,200
Garrard County2107918,207$204,900
Grant County2108126,181$209,500
Graves County2108337,050$147,800
Grayson County2108527,406$164,600
Green County2108711,644$125,000
Greenup County2108935,213$134,000
Hancock County210919,050$141,200
Hardin County21093113,482$225,800
Harlan County2109524,725$73,700
Harrison County2109719,627$202,100
Hart County2109920,117$146,000
Henderson County2110144,255$171,900
Henry County2110316,447$197,900
Hickman County211054,372$115,700
Hopkins County2110745,127$142,800
Jackson County2110913,325$111,500
Jefferson County21111795,222$248,400
Jessamine County2111357,147$268,100
Johnson County2111522,051$120,200
Kenton County21117175,779$244,400
Knott County2111913,321$77,000
Knox County2112129,532$118,700
Larue County2112315,184$183,500
Laurel County2112563,746$159,500
Lawrence County2112715,765$111,700
Lee County211297,297$83,900
Leslie County211319,627$69,000
Letcher County2113319,952$67,400
Lewis County2113512,901$96,000
Lincoln County2113725,353$147,300
Livingston County211398,863$125,600
Logan County2114128,669$164,900
Lyon County211439,123$189,500
McCracken County2114567,553$188,100
McCreary County2114717,124$85,300
McLean County211499,064$148,500
Madison County21151101,696$232,000
Magoffin County2115311,110$89,000
Marion County2115520,115$168,100
Marshall County2115731,659$173,800
Martin County2115910,697$86,900
Mason County2116116,936$161,500
Meade County2116330,699$207,900
Menifee County211656,430$125,800
Mercer County2116723,733$202,300
Metcalfe County2116910,583$110,200
Monroe County2117111,191$115,900
Montgomery County2117328,822$172,200
Morgan County2117514,415$118,200
Muhlenberg County2117730,634$127,400
Nelson County2117949,036$238,000
Nicholas County211817,949$123,000
Ohio County2118323,934$121,400
Oldham County2118570,986$393,100
Owen County2118711,601$168,700
Owsley County211893,932$80,100
Pendleton County2119114,800$159,800
Perry County2119326,555$91,800
Pike County2119554,721$112,000
Powell County2119712,812$141,100
Pulaski County2119967,384$166,900
Robertson County212012,325$165,100
Rockcastle County2120316,148$123,600
Rowan County2120524,476$161,800
Russell County2120718,608$163,200
Scott County2120962,262$288,500
Shelby County2121151,243$304,800
Simpson County2121320,788$229,400
Spencer County2121520,998$330,000
Taylor County2121726,763$174,200
Todd County2121912,972$166,700
Trigg County2122114,512$207,700
Trimble County212238,701$172,000
Union County2122512,839$104,500
Warren County21227149,375$258,000
Washington County2122912,368$179,200
Wayne County2123119,597$135,700
Webster County2123312,929$112,900
Whitley County2123537,297$131,800
Wolfe County212376,298$75,800
Woodford County2123927,883$299,700