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Franklin County, WA: population growth, jobs and income

Franklin County gained 1,226 residents between 2024 and 2025 (+1.2%).

Franklin County had an estimated 102,612 residents in 2025, up 5.6% (5,475 more people) since 2020. That is faster than Washington as a whole (+3.5%), and the 12th fastest growth of 39 counties in Washington.

Data as of 2025 · updated

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In the Franklin County report

One-time $99 PDF: everything on this page for Franklin County, ranked against Washington and the U.S., plus these figures that are not on the free page:

  • Median gross rent$1,198/mo2020–24
  • Vacant homes, incl. seasonal and second homes4.1%2020–24
  • New homes permitted, last 12 months9072025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration was negative in 2025: 97 more people moved out to other U.S. counties than moved in.

Private employers had 24,069 paid employees in mid-March 2023, +8.6% since 2018 (County Business Patterns).

Unemployment averaged 5.4% in 2025, 0.8 points lower than in 2019 (before the pandemic).

Builders were authorized to start 768 new homes in 2025, or 7.5 per 1,000 residents.

Median household income was $86,714 in the 2020–24 American Community Survey, +29.6% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 541st.

Part of the Kennewick-Richland, WA metro area.

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Franklin County population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
2025102,612+1,226
2024101,386+1,703
202399,683+1,238
202298,445+349
202198,096+959
202097,137–

Census Bureau population estimates, July 1 of each year.

What drove the change in Franklin County

Franklin County grew by 5,475 people since 2020 even though 1,920 more residents moved to other U.S. counties than came from them: births outnumbered deaths by 4,451, and net international migration added 2,885.

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths+896+4,451
International migrationfrom and to other countries+415+2,885
Domestic migrationfrom and to other U.S. counties−97−1,920
Census adjustmentbalancing residual+12+59
Total change+1,226+5,475

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn WashingtonAmong U.S. counties
Population growth12th of 39541st of 3,107
Net domestic migration per 1,000 residents34th of 392,077th of 3,108
Private-sector job growth11th of 39820th of 3,092
Median household income11th of 39380th of 3,107
Lowest unemployment rate28th of 392,729th of 3,108
New homes permitted per 1,000 residents3rd of 39299th of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

Get the county report — $99

The County Growth and Demographics Report for Franklin County, WA as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

Add 2 neighbouring counties for $50: the Benton County and Grant County reports too, $149 for all 3.

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Neighbouring counties

Over 2020–25, Franklin County's population change (+5.6%) was ahead of 4 of its 6 neighbouring counties and behind 2 (Benton County and Grant County).

Only Benton County had a higher median household income (2020–24) among its 6 neighbouring counties; Franklin County's was $86,714.

Franklin County, WA and its 6 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
Franklin County, WA This county102,612+5.6%−0.97.5$86,714
Walla Walla County, WA62,361−0.4%4.42.6$74,202
Benton County, WA221,722+6.9%6.57.5$89,874
Adams County, WA21,488+4.3%−8.81.5$66,136
Grant County, WA105,727+6.3%−2.54.1$73,267
Columbia County, WA4,141+4.7%23.21.2$71,810
Whitman County, WA48,512+1.5%5.20.5$55,406

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 39 Washington counties · Every state

Questions

Is Franklin County growing?

Yes. Its population grew 5.6% between 2020 and 2025, about 5,475 more people (Census Bureau population estimates). Washington as a whole changed +3.5% over the same years. That ranks 12th of 39 counties in Washington for population growth.

How many people moved to Franklin County?

On net, none in 2025: about 97 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).

What is the unemployment rate in Franklin County?

It averaged 5.4% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of Franklin County?

About 102,612 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in Franklin County?

Private employers there had 24,069 paid employees in mid-March 2023, +8.6% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in Washington

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Washington county pages carry the public federal growth figures.

Franklin County data alerts

Email me when Franklin County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for Franklin County is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.

Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.