Data / Rankings / Crude birth rate, July to June / Counties in Washington

Counties in Washington by birth rate (July to June), 2025

Adams County had the highest birth rate (July to June) of 39 counties in 2025, at 18.13 per 1,000 inhabitants. Jefferson County had the lowest, at 4.04 per 1,000 inhabitants. The median was 9.85 per 1,000 inhabitants and the figure for Washington was 10.47 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Highest18.13Adams County
Lowest4.04Jefferson County
Median9.8539 counties
Washington10.47History

All counties, 2025

CSVChart (SVG)

Adams CountyAdams County: 18.13 per 1,000 inhabitants18.13Asotin CountyAsotin County: 14.86 per 1,000 inhabitants14.86Franklin CountyFranklin County: 14.04 per 1,000 inhabitants14.04Klickitat CountyKlickitat County: 13.82 per 1,000 inhabitants13.82Grant CountyGrant County: 13.37 per 1,000 inhabitants13.37Yakima CountyYakima County: 12.5 per 1,000 inhabitants12.5Clark CountyClark County: 11.61 per 1,000 inhabitants11.61Snohomish CountySnohomish County: 11.54 per 1,000 inhabitants11.54Cowlitz CountyCowlitz County: 11.39 per 1,000 inhabitants11.39Pierce CountyPierce County: 11.24 per 1,000 inhabitants11.24Benton CountyBenton County: 11.2 per 1,000 inhabitants11.2Lincoln CountyLincoln County: 10.84 per 1,000 inhabitants10.84Garfield CountyGarfield County: 10.8 per 1,000 inhabitants10.8Spokane CountySpokane County: 10.6 per 1,000 inhabitants10.6Lewis CountyLewis County: 10.57 per 1,000 inhabitants10.57Skagit CountySkagit County: 10.48 per 1,000 inhabitants10.48Douglas CountyDouglas County: 10.39 per 1,000 inhabitants10.39Stevens CountyStevens County: 10.12 per 1,000 inhabitants10.12Skamania CountySkamania County: 9.88 per 1,000 inhabitants9.88Chelan CountyChelan County: 9.85 per 1,000 inhabitants9.85Columbia CountyColumbia County: 9.77 per 1,000 inhabitants9.77King CountyKing County: 9.77 per 1,000 inhabitants9.77Kitsap CountyKitsap County: 9.72 per 1,000 inhabitants9.72Mason CountyMason County: 9.61 per 1,000 inhabitants9.61Okanogan CountyOkanogan County: 9.52 per 1,000 inhabitants9.52Thurston CountyThurston County: 9.48 per 1,000 inhabitants9.48Ferry CountyFerry County: 8.9 per 1,000 inhabitants8.9Walla Walla CountyWalla Walla County: 8.85 per 1,000 inhabitants8.85Grays Harbor CountyGrays Harbor County: 8.75 per 1,000 inhabitants8.75Pacific CountyPacific County: 8.6 per 1,000 inhabitants8.6Island CountyIsland County: 8.58 per 1,000 inhabitants8.58Pend Oreille CountyPend Oreille County: 8.4 per 1,000 inhabitants8.4Whatcom CountyWhatcom County: 8.37 per 1,000 inhabitants8.37Whitman CountyWhitman County: 8.34 per 1,000 inhabitants8.34Wahkiakum CountyWahkiakum County: 8.26 per 1,000 inhabitants8.26Kittitas CountyKittitas County: 7.82 per 1,000 inhabitants7.82Clallam CountyClallam County: 6.75 per 1,000 inhabitants6.75San Juan CountySan Juan County: 4.79 per 1,000 inhabitants4.79Jefferson CountyJefferson County: 4.04 per 1,000 inhabitants4.04
per 1,000 inhabitants. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2025
per 1,000 inhabitants		Change on 2024
1Adams County Estimated18.13+0.03 pts
2Asotin County Estimated14.86+2.78 pts
3Franklin County Estimated14.04-0.22 pts
4Klickitat County Estimated13.82+3.4 pts
5Grant County Estimated13.37-0.03 pts
6Yakima County Estimated12.5+0.16 pts
7Clark County Estimated11.61+0.58 pts
8Snohomish County Estimated11.54-0.12 pts
9Cowlitz County Estimated11.39+0.48 pts
10Pierce County Estimated11.24-0.02 pts
11Benton County Estimated11.2-0.16 pts
12Lincoln County Estimated10.84+0.05 pts
13Garfield County Estimated10.8+3.65 pts
14Spokane County Estimated10.6+0.13 pts
15Lewis County Estimated10.57-0.04 pts
16Skagit County Estimated10.48+0.04 pts
17Douglas County Estimated10.39-0.12 pts
18Stevens County Estimated10.12+0.12 pts
19Skamania County Estimated9.88+1.57 pts
20Chelan County Estimated9.85+0.03 pts
21Columbia County Estimated9.77+0.15 pts
22King County Estimated9.77-0.06 pts
23Kitsap County Estimated9.72-0.01 pts
24Mason County Estimated9.61-0.09 pts
25Okanogan County Estimated9.52-0.12 pts
26Thurston County Estimated9.48-0.05 pts
27Ferry County Estimated8.9-0.01 pts
28Walla Walla County Estimated8.85-0.11 pts
29Grays Harbor County Estimated8.75+0.08 pts
30Pacific County Estimated8.6+1.71 pts
31Island County Estimated8.58+0.25 pts
32Pend Oreille County Estimated8.4+0.32 pts
33Whatcom County Estimated8.37-0.01 pts
34Whitman County Estimated8.34+0.09 pts
35Wahkiakum County Estimated8.26+1.58 pts
36Kittitas County Estimated7.82-0.04 pts
37Clallam County Estimated6.75-0.02 pts
38San Juan County Estimated4.79-0 pts
39Jefferson County Estimated4.04+0.01 pts

Other periods

About this ranking

Estimated live births from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.

Published Census population estimates rate. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth rates.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

Which county has the highest birth rate (July to June)?

Adams County, with 18.13 per 1,000 inhabitants in 2025, according to the U.S. Census Bureau.

Which county has the lowest birth rate (July to June)?

Jefferson County, with 4.04 per 1,000 inhabitants in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Crude birth rate, July to June: other rankings

Counties in Washington: more rankings