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

Counties in Washington by birth rate (July to June)

Adams County had the highest birth rate (July to June) of 39 counties in 2021, at 17.89 per 1,000 inhabitants. Jefferson County had the lowest, at 4.08 per 1,000 inhabitants. The median was 9.71 per 1,000 inhabitants and the figure for Washington was 10.67 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Highest17.89Adams County
Lowest4.08Jefferson County
Median9.7139 counties
Washington10.67History

All counties, 2021

CSVChart (SVG)

Adams CountyAdams County: 17.89 per 1,000 inhabitants17.89Franklin CountyFranklin County: 14.49 per 1,000 inhabitants14.49Grant CountyGrant County: 13.69 per 1,000 inhabitants13.69Yakima CountyYakima County: 13.09 per 1,000 inhabitants13.09Pierce CountyPierce County: 11.91 per 1,000 inhabitants11.91Benton CountyBenton County: 11.84 per 1,000 inhabitants11.84Snohomish CountySnohomish County: 11.29 per 1,000 inhabitants11.29Okanogan CountyOkanogan County: 10.91 per 1,000 inhabitants10.91Cowlitz CountyCowlitz County: 10.7 per 1,000 inhabitants10.7Douglas CountyDouglas County: 10.66 per 1,000 inhabitants10.66Spokane CountySpokane County: 10.66 per 1,000 inhabitants10.66Skagit CountySkagit County: 10.63 per 1,000 inhabitants10.63Lewis CountyLewis County: 10.55 per 1,000 inhabitants10.55Clark CountyClark County: 10.53 per 1,000 inhabitants10.53Thurston CountyThurston County: 10.33 per 1,000 inhabitants10.33King CountyKing County: 10.27 per 1,000 inhabitants10.27Kitsap CountyKitsap County: 9.98 per 1,000 inhabitants9.98Lincoln CountyLincoln County: 9.82 per 1,000 inhabitants9.82Chelan CountyChelan County: 9.76 per 1,000 inhabitants9.76Walla Walla CountyWalla Walla County: 9.71 per 1,000 inhabitants9.71Asotin CountyAsotin County: 9.55 per 1,000 inhabitants9.55Garfield CountyGarfield County: 9.48 per 1,000 inhabitants9.48Columbia CountyColumbia County: 9.28 per 1,000 inhabitants9.28Stevens CountyStevens County: 9.28 per 1,000 inhabitants9.28Mason CountyMason County: 9.26 per 1,000 inhabitants9.26Grays Harbor CountyGrays Harbor County: 9.09 per 1,000 inhabitants9.09Ferry CountyFerry County: 8.97 per 1,000 inhabitants8.97Island CountyIsland County: 8.79 per 1,000 inhabitants8.79Whatcom CountyWhatcom County: 8.74 per 1,000 inhabitants8.74Klickitat CountyKlickitat County: 8.48 per 1,000 inhabitants8.48Whitman CountyWhitman County: 7.97 per 1,000 inhabitants7.97Skamania CountySkamania County: 7.83 per 1,000 inhabitants7.83Pend Oreille CountyPend Oreille County: 7.81 per 1,000 inhabitants7.81Kittitas CountyKittitas County: 7.79 per 1,000 inhabitants7.79Clallam CountyClallam County: 7.77 per 1,000 inhabitants7.77Pacific CountyPacific County: 7.2 per 1,000 inhabitants7.2San Juan CountySan Juan County: 6.75 per 1,000 inhabitants6.75Wahkiakum CountyWahkiakum County: 5.09 per 1,000 inhabitants5.09Jefferson CountyJefferson County: 4.08 per 1,000 inhabitants4.08
per 1,000 inhabitants. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
per 1,000 inhabitants
1Adams County Estimated17.89
2Franklin County Estimated14.49
3Grant County Estimated13.69
4Yakima County Estimated13.09
5Pierce County Estimated11.91
6Benton County Estimated11.84
7Snohomish County Estimated11.29
8Okanogan County Estimated10.91
9Cowlitz County Estimated10.7
10Douglas County Estimated10.66
11Spokane County Estimated10.66
12Skagit County Estimated10.63
13Lewis County Estimated10.55
14Clark County Estimated10.53
15Thurston County Estimated10.33
16King County Estimated10.27
17Kitsap County Estimated9.98
18Lincoln County Estimated9.82
19Chelan County Estimated9.76
20Walla Walla County Estimated9.71
21Asotin County Estimated9.55
22Garfield County Estimated9.48
23Columbia County Estimated9.28
24Stevens County Estimated9.28
25Mason County Estimated9.26
26Grays Harbor County Estimated9.09
27Ferry County Estimated8.97
28Island County Estimated8.79
29Whatcom County Estimated8.74
30Klickitat County Estimated8.48
31Whitman County Estimated7.97
32Skamania County Estimated7.83
33Pend Oreille County Estimated7.81
34Kittitas County Estimated7.79
35Clallam County Estimated7.77
36Pacific County Estimated7.2
37San Juan County Estimated6.75
38Wahkiakum County Estimated5.09
39Jefferson County Estimated4.08

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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Rank Counties in Washington by birth rate (July to June) using official data, and cite the source.
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Questions

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

Adams County, with 17.89 per 1,000 inhabitants in 2021, according to the U.S. Census Bureau.

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

Jefferson County, with 4.08 per 1,000 inhabitants in 2021.

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