Digital Radiation

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

Washington County Population — 2025 PEP

July 1, 2025 resident population estimates for 39 counties. State total (sum of these county estimates): 8,001,020 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: 8,001,020 persons (SUMLEV 040, PEP Vintage 2025). County sum: 8,001,020 persons; comparison status: equal.

Official NST July 2020: 7,726,812 persons; July 2020–July 2025 change: +274,208 persons; growth: 3.548786 percent (denominator: official July 2020 population).

County July 2024–July 2025: Growing: 37 · Shrinking: 2 · Unchanged: 0 · Missing: 0. Median county growth: 0.778539 percent.

Largest county: King County (GEOID 53033): 2344939 persons.

Fastest county growth: Columbia County (GEOID 53013): 2.347998 percent.

Greatest numeric increase: King County (GEOID 53033): 26980 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: 8,001,020 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.

Scroll horizontally to see Count and Share. Keyboard: focus this table region and use Left and Right arrow keys.

Official state age, sex, race and overlapping Hispanic origin
MeasureCountShare
Female4,007,223 persons50.083902 percent
Male3,993,797 persons49.916098 percent
Ages 18–24688,448 persons8.604503 percent
Ages 25–442,376,988 persons29.708562 percent
Ages 45–641,840,185 persons22.999380 percent
Ages 65 and older1,460,563 persons18.254710 percent
Under 181,634,836 persons20.432845 percent
American Indian or Alaska Native alone195,229 persons2.440051 percent
Asian alone942,599 persons11.780985 percent
Black or African American alone378,073 persons4.725310 percent
Native Hawaiian or other Pacific Islander alone81,939 persons1.024107 percent
Two or more races607,235 persons7.589470 percent
White alone5,795,945 persons72.440076 percent
Hispanic (any race)1,240,207 persons15.500611 percent
Not Hispanic6,760,813 persons84.499389 percent

Official state median age: 38.8 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): 7,707,519 persons; county base sum: 7,707,519 persons; comparison: equal. This is not the original decennial census count.

Original April 1, 2020 Census count: 39 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.

Loading county controls; static rankings available below…

Map not loaded. County controls and rankings do not require boundaries.

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 · King County (GEOID 53033). 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 male1,176,513 persons50.172435 percent
Sex · PEP female1,168,426 persons49.827565 percent
Age bands · PEP under18436,306 persons18.606284 percent
Age bands · PEP age18 24191,405 persons8.162472 percent
Age bands · PEP age25 44818,966 persons34.924832 percent
Age bands · PEP age45 64542,727 persons23.144611 percent
Age bands · PEP age65plus355,535 persons15.161802 percent
Race alone (partition) · PEP white alone1,375,155 persons58.643530 percent
Race alone (partition) · PEP black alone172,147 persons7.341214 percent
Race alone (partition) · PEP aian alone34,288 persons1.462213 percent
Race alone (partition) · PEP asian alone566,041 persons24.138837 percent
Race alone (partition) · PEP nhpi alone23,083 persons0.984375 percent
Race alone (partition) · PEP two or more174,225 persons7.429831 percent
Hispanic origin (overlaps race) · PEP hispanic any race274,308 persons11.697874 percent
Hispanic origin (overlaps race) · PEP not hispanic2,070,631 persons88.302126 percent
Other overlapping classifications (not additive) · PEP white alone or combination1,534,950 persons65.457993 percent
Other overlapping classifications (not additive) · PEP not hispanic white alone1,175,574 persons50.132392 percent
Official county median age · AGESEX MEDIAN_AGE_TOT37.5 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 39 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 39 counties; ranked by 2025 population, descending.

Washington County Population — 2025 PEP — July 1, 2025; rank reflects the selected ordering
RankCountyGEOIDPopulation (persons)Signed change (persons)Signed change (percent)
1King County530332,344,939+26980 persons+1.163955%
2Pierce County53053946,288+6502 persons+0.691860%
3Snohomish County53061870,656+9586 persons+1.113266%
4Spokane County53063558,344+2859 persons+0.514685%
5Clark County53011532,119+5878 persons+1.116979%
6Thurston County53067304,261+2129 persons+0.704659%
7Kitsap County53035283,374+2646 persons+0.942549%
8Yakima County53077259,185+214 persons+0.082635%
9Whatcom County53073236,392+1791 persons+0.763424%
10Benton County53005221,722+2791 persons+1.274831%
11Skagit County53057132,975+725 persons+0.548204%
12Cowlitz County53015114,885+1121 persons+0.985373%
13Grant County53025105,727+893 persons+0.851823%
14Franklin County53021102,612+1226 persons+1.209240%
15Lewis County5304188,062+931 persons+1.068506%
16Island County5302985,657-325 persons-0.377986%
17Chelan County5300781,941+559 persons+0.686884%
18Clallam County5300978,202+272 persons+0.349031%
19Grays Harbor County5302778,144+124 persons+0.158934%
20Mason County5304571,165+1406 persons+2.015511%
21Walla Walla County5307162,361+252 persons+0.405738%
22Stevens County5306549,668+490 persons+0.996380%
23Kittitas County5303748,803+696 persons+1.446775%
24Whitman County5307548,512+649 persons+1.355953%
25Douglas County5301746,473+956 persons+2.100314%
26Okanogan County5304745,230+582 persons+1.303530%
27Jefferson County5303133,970+79 persons+0.233100%
28Pacific County5304924,357+120 persons+0.495111%
29Klickitat County5303924,331+326 persons+1.358050%
30Asotin County5300322,545+7 persons+0.031059%
31Adams County5300121,488+166 persons+0.778539%
32San Juan County5305518,577+21 persons+0.113171%
33Pend Oreille County5305114,457+90 persons+0.626436%
34Skamania County5305912,669+25 persons+0.197722%
35Lincoln County5304311,982+155 persons+1.310561%
36Ferry County530197,517-30 persons-0.397509%
37Wahkiakum County530694,873+60 persons+1.246624%
38Columbia County530134,141+95 persons+2.347998%
39Garfield County530232,416+15 persons+0.624740%

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 King County (GEOID 53033). 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 King County (GEOID 53033), persons
DatePopulation (persons)Interval
April 1, 2020 base2,269,668Estimates base; not July 1
July 1, 20202,274,304April–July partial-year; no annual rate
July 1, 20212,253,549July 2020–July 2021 comparison
July 1, 20222,265,822July-to-July estimate
July 1, 20232,283,086July-to-July estimate
July 1, 20242,317,959July-to-July estimate
July 1, 20252,344,939July-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)
Adams County5300121,488$273,300
Asotin County5300322,545$325,600
Benton County53005221,722$407,800
Chelan County5300781,941$490,100
Clallam County5300978,202$421,800
Clark County53011532,119$522,900
Columbia County530134,141$271,200
Cowlitz County53015114,885$397,500
Douglas County5301746,473$432,500
Ferry County530197,517$283,400
Franklin County53021102,612$379,300
Garfield County530232,416$239,200
Grant County53025105,727$299,500
Grays Harbor County5302778,144$314,000
Island County5302985,657$593,300
Jefferson County5303133,970$535,000
King County530332,344,939$859,900
Kitsap County53035283,374$555,100
Kittitas County5303748,803$497,400
Klickitat County5303924,331$425,300
Lewis County5304188,062$385,800
Lincoln County5304311,982$292,800
Mason County5304571,165$411,800
Okanogan County5304745,230$299,800
Pacific County5304924,357$334,800
Pend Oreille County5305114,457$367,900
Pierce County53053946,288$526,600
San Juan County5305518,577$799,200
Skagit County53057132,975$545,100
Skamania County5305912,669$529,500
Snohomish County53061870,656$696,000
Spokane County53063558,344$410,700
Stevens County5306549,668$350,600
Thurston County53067304,261$480,300
Wahkiakum County530694,873$396,800
Walla Walla County5307162,361$408,900
Whatcom County53073236,392$585,800
Whitman County5307548,512$359,600
Yakima County53077259,185$310,100