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

Ohio County Population — 2025 PEP

July 1, 2025 resident population estimates for 88 counties. State total (sum of these county estimates): 11,900,510 persons.

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

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: 11,900,510 persons (SUMLEV 040, PEP Vintage 2025). County sum: 11,900,510 persons; comparison status: equal.

Official NST July 2020: 11,798,534 persons; July 2020–July 2025 change: +101,976 persons; growth: 0.864311 percent (denominator: official July 2020 population).

County July 2024–July 2025: Growing: 59 · Shrinking: 29 · Unchanged: 0 · Missing: 0. Median county growth: 0.176653 percent.

Largest county: Franklin County (GEOID 39049): 1361536 persons.

Fastest county growth: Madison County (GEOID 39097): 2.614222 percent.

Greatest numeric increase: Franklin County (GEOID 39049): 8880 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: 11,900,510 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
Female6,064,350 persons50.958740 percent
Male5,836,160 persons49.041260 percent
Ages 18–241,073,107 persons9.017319 percent
Ages 25–443,064,877 persons25.754165 percent
Ages 45–642,832,490 persons23.801417 percent
Ages 65 and older2,398,129 persons20.151481 percent
Under 182,531,907 persons21.275618 percent
American Indian or Alaska Native alone53,070 persons0.445947 percent
Asian alone369,558 persons3.105396 percent
Black or African American alone1,589,739 persons13.358579 percent
Native Hawaiian or other Pacific Islander alone8,117 persons0.068207 percent
Two or more races530,941 persons4.461498 percent
White alone9,349,085 persons78.560373 percent
Hispanic (any race)651,398 persons5.473698 percent
Not Hispanic11,249,112 persons94.526302 percent

Official state median age: 40.1 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): 11,799,445 persons; county base sum: 11,799,445 persons; comparison: equal. This is not the original decennial census count.

Original April 1, 2020 Census count: 88 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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After loading, Tab to a county and press Enter or Space; colors and the legend indicate signed direction and magnitude. Outlines show selection. The county picker works before and after map loading.

Selected county demographic breakdown

July 1, 2025 · Franklin County (GEOID 39049). 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 male663,488 persons48.730845 percent
Sex · PEP female698,048 persons51.269155 percent
Age bands · PEP under18306,157 persons22.486148 percent
Age bands · PEP age18 24130,823 persons9.608486 percent
Age bands · PEP age25 44437,126 persons32.105357 percent
Age bands · PEP age45 64290,460 persons21.333259 percent
Age bands · PEP age65plus196,970 persons14.466749 percent
Race alone (partition) · PEP white alone849,084 persons62.362214 percent
Race alone (partition) · PEP black alone341,745 persons25.099961 percent
Race alone (partition) · PEP aian alone9,518 persons0.699063 percent
Race alone (partition) · PEP asian alone84,349 persons6.195135 percent
Race alone (partition) · PEP nhpi alone528 persons0.038780 percent
Race alone (partition) · PEP two or more76,312 persons5.604846 percent
Hispanic origin (overlaps race) · PEP hispanic any race121,222 persons8.903327 percent
Hispanic origin (overlaps race) · PEP not hispanic1,240,314 persons91.096673 percent
Other overlapping classifications (not additive) · PEP white alone or combination919,971 persons67.568614 percent
Other overlapping classifications (not additive) · PEP not hispanic white alone762,881 persons56.030909 percent
Official county median age · AGESEX MEDIAN_AGE_TOT35.1 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 88 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 88 counties; ranked by 2025 population, descending.

Ohio County Population — 2025 PEP — July 1, 2025; rank reflects the selected ordering
RankCountyGEOIDPopulation (persons)Signed change (persons)Signed change (percent)
1Franklin County390491,361,536+8880 persons+0.656486%
2Cuyahoga County390351,232,925-689 persons-0.055852%
3Hamilton County39061838,418+559 persons+0.066718%
4Montgomery County39113539,598+2668 persons+0.496899%
5Summit County39153538,376+1431 persons+0.266508%
6Lucas County39095423,347-908 persons-0.214022%
7Butler County39017400,128+2347 persons+0.590023%
8Stark County39151373,771+531 persons+0.142268%
9Lorain County39093323,219+2060 persons+0.641427%
10Warren County39165257,181+2142 persons+0.839872%
11Delaware County39041242,032+5169 persons+2.182274%
12Lake County39085232,217+77 persons+0.033170%
13Mahoning County39099224,706-71 persons-0.031587%
14Clermont County39025216,977+2663 persons+1.242569%
15Trumbull County39155198,972-842 persons-0.421392%
16Licking County39089185,564+1224 persons+0.663990%
17Medina County39103185,025+750 persons+0.407000%
18Greene County39057174,322+2174 persons+1.262867%
19Fairfield County39045169,752+2046 persons+1.219992%
20Portage County39133163,404+197 persons+0.120706%
21Clark County39023135,340-830 persons-0.609532%
22Wood County39173134,176+1104 persons+0.829626%
23Richland County39139124,893-64 persons-0.051218%
24Wayne County39169116,758+183 persons+0.156980%
25Miami County39109112,634+762 persons+0.681136%
26Allen County39003100,881-71 persons-0.070330%
27Columbiana County3902999,377-299 persons-0.299972%
28Ashtabula County3900796,713-35 persons-0.036176%
29Geauga County3905595,676+376 persons+0.394544%
30Tuscarawas County3915792,373+141 persons+0.152875%
31Muskingum County3911987,014+693 persons+0.802817%
32Ross County3914176,429+431 persons+0.567120%
33Hancock County3906375,034+273 persons+0.365164%
34Union County3915973,446+1463 persons+2.032424%
35Erie County3904373,296-349 persons-0.473895%
36Scioto County3914571,365-459 persons-0.639062%
37Marion County3910165,115+238 persons+0.366848%
38Belmont County3901364,434-330 persons-0.509542%
39Knox County3908364,002+438 persons+0.689069%
40Jefferson County3908163,597-271 persons-0.424313%
41Athens County3900963,197+117 persons+0.185479%
42Pickaway County3912962,978+771 persons+1.239410%
43Sandusky County3914358,655+4 persons+0.006820%
44Washington County3916758,389-210 persons-0.358368%
45Huron County3907758,250+22 persons+0.037783%
46Lawrence County3908755,710-247 persons-0.441410%
47Seneca County3914754,522-172 persons-0.314477%
48Ashland County3900552,523+88 persons+0.167827%
49Darke County3903751,520+75 persons+0.145787%
50Shelby County3914948,065+113 persons+0.235652%
51Madison County3909746,985+1197 persons+2.614222%
52Logan County3909146,302+230 persons+0.499219%
53Auglaize County3901145,909-27 persons-0.058777%
54Holmes County3907544,970+227 persons+0.507342%
55Brown County3901544,397+234 persons+0.529855%
56Highland County3907143,823+119 persons+0.272286%
57Mercer County3910742,737+217 persons+0.510348%
58Clinton County3902742,301+255 persons+0.606479%
59Crawford County3903341,896+356 persons+0.857005%
60Fulton County3905141,853-222 persons-0.527629%
61Preble County3913540,664-54 persons-0.132619%
62Ottawa County3912339,481-248 persons-0.624229%
63Champaign County3902138,820+103 persons+0.266033%
64Guernsey County3905938,379+50 persons+0.130450%
65Defiance County3903938,292-41 persons-0.106957%
66Coshocton County3903137,188+189 persons+0.510825%
67Williams County3917136,549-72 persons-0.196609%
68Morrow County3911736,305+297 persons+0.824817%
69Perry County3912735,918+213 persons+0.596555%
70Putnam County3913734,380+220 persons+0.644028%
71Jackson County3907932,817+76 persons+0.232125%
72Hardin County3906530,072-182 persons-0.601573%
73Gallia County3905329,072+116 persons+0.400608%
74Van Wert County3916129,013+147 persons+0.509250%
75Fayette County3904728,552-157 persons-0.546867%
76Adams County3900127,865+223 persons+0.806743%
77Henry County3906927,598+93 persons+0.338120%
78Hocking County3907327,512+52 persons+0.189366%
79Pike County3913127,061-15 persons-0.055400%
80Carroll County3901926,475-92 persons-0.346294%
81Meigs County3910521,587+25 persons+0.115945%
82Wyandot County3917521,567+8 persons+0.037107%
83Paulding County3912518,727-30 persons-0.159940%
84Noble County3912114,276+12 persons+0.084128%
85Harrison County3906714,070-29 persons-0.205688%
86Morgan County3911513,626+21 persons+0.154355%
87Monroe County3911112,994-73 persons-0.558659%
88Vinton County3916312,645+88 persons+0.700804%

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 Franklin County (GEOID 39049). 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 Franklin County (GEOID 39049), persons
DatePopulation (persons)Interval
April 1, 2020 base1,323,793Estimates base; not July 1
July 1, 20201,324,478April–July partial-year; no annual rate
July 1, 20211,317,228July 2020–July 2021 comparison
July 1, 20221,326,392July-to-July estimate
July 1, 20231,337,095July-to-July estimate
July 1, 20241,352,656July-to-July estimate
July 1, 20251,361,536July-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.

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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)
Adams County3900127,865$164,200
Allen County39003100,881$165,300
Ashland County3900552,523$186,800
Ashtabula County3900796,713$159,500
Athens County3900963,197$185,000
Auglaize County3901145,909$189,800
Belmont County3901364,434$154,900
Brown County3901544,397$196,200
Butler County39017400,128$258,500
Carroll County3901926,475$183,100
Champaign County3902138,820$204,000
Clark County39023135,340$169,900
Clermont County39025216,977$266,200
Clinton County3902742,301$211,900
Columbiana County3902999,377$151,600
Coshocton County3903137,188$155,500
Crawford County3903341,896$136,700
Cuyahoga County390351,232,925$195,400
Darke County3903751,520$173,200
Defiance County3903938,292$163,200
Delaware County39041242,032$445,500
Erie County3904373,296$199,700
Fairfield County39045169,752$298,800
Fayette County3904728,552$170,700
Franklin County390491,361,536$288,400
Fulton County3905141,853$191,000
Gallia County3905329,072$155,600
Geauga County3905595,676$331,100
Greene County39057174,322$252,200
Guernsey County3905938,379$157,700
Hamilton County39061838,418$241,900
Hancock County3906375,034$204,700
Hardin County3906530,072$151,200
Harrison County3906714,070$121,500
Henry County3906927,598$168,600
Highland County3907143,823$168,900
Hocking County3907327,512$186,400
Holmes County3907544,970$267,700
Huron County3907758,250$166,000
Jackson County3907932,817$150,700
Jefferson County3908163,597$127,800
Knox County3908364,002$239,400
Lake County39085232,217$214,100
Lawrence County3908755,710$144,000
Licking County39089185,564$275,200
Logan County3909146,302$203,200
Lorain County39093323,219$223,200
Lucas County39095423,347$163,900
Madison County3909746,985$250,100
Mahoning County39099224,706$154,700
Marion County3910165,115$156,800
Medina County39103185,025$287,000
Meigs County3910521,587$119,300
Mercer County3910742,737$210,600
Miami County39109112,634$229,100
Monroe County3911112,994$142,700
Montgomery County39113539,598$180,900
Morgan County3911513,626$150,900
Morrow County3911736,305$222,300
Muskingum County3911987,014$182,200
Noble County3912114,276$163,600
Ottawa County3912339,481$219,900
Paulding County3912518,727$140,800
Perry County3912735,918$191,100
Pickaway County3912962,978$256,800
Pike County3913127,061$163,800
Portage County39133163,404$227,000
Preble County3913540,664$180,900
Putnam County3913734,380$201,100
Richland County39139124,893$164,800
Ross County3914176,429$171,500
Sandusky County3914358,655$160,700
Scioto County3914571,365$137,900
Seneca County3914754,522$154,700
Shelby County3914948,065$208,100
Stark County39151373,771$186,400
Summit County39153538,376$208,700
Trumbull County39155198,972$141,800
Tuscarawas County3915792,373$185,400
Union County3915973,446$344,900
Van Wert County3916129,013$152,000
Vinton County3916312,645$150,000
Warren County39165257,181$349,400
Washington County3916758,389$185,600
Wayne County39169116,758$222,100
Williams County3917136,549$150,000
Wood County39173134,176$227,600
Wyandot County3917521,567$163,400