Franklin County, Washington Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 14th-largest in Washington
The population of Franklin County, Washington is 97,676 as of the 2023 American Community Survey, making it the 14th-largest county in Washington. The median household income is $82,755, the median home value is $345,700, and the median age is 30.8.
The population of Franklin County has grown 28.0% since 2010 (79,076 → 101,238), a +1.78% annualized rate.
97,676
Population
+1.78%
Annual growth
79
People / sq mi
$82,755
Median Income
$345,700
Median Home Value
Franklin County covers 1,242 sq mi of land at 78.7 people per square mile.
About Franklin County, WA
Franklin County is a county in Washington with a population of 97,676. It ranks #14 among counties in Washington by population. The median age is 30.8, younger than the national median. The population is 51.5% male and 48.5% female.
The median household income in Franklin County is $82,755, above the US median of $74,580. 10.2% of residents live below the federal poverty level. Home values sit at a median of $345,700, with monthly rent averaging $1,171. The homeownership rate of 70.1% is higher than the national rate of 64.8%.
Educational attainment in Franklin County reflects 20.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.2 minutes each way.
Franklin County Population History (2010-2024)
The county of Franklin County had a population of 79,076 in 2010 and 101,238 in 2024, a 28.0% growth over 14 years. The peak was 101,238 in 2024. Average annual growth rate: 1.79%.
101,238
Population (2024)
79,076
Population (2010)
101,238
Peak (2024)
1.79%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 79,076 |
| 2011 | 83,048 |
| 2012 | 85,691 |
| 2013 | 86,441 |
| 2014 | 87,640 |
| 2015 | 88,681 |
| 2016 | 90,132 |
| 2017 | 91,803 |
| 2018 | 93,950 |
| 2019 | 95,446 |
| 2020 | 97,152 |
| 2021 | 98,107 |
| 2022 | 98,461 |
| 2023 | 99,554 |
| 2024 | 101,238 |
Race & Ethnicity
| White | 51.8% |
| Black or African American | 1.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.2% |
| Two or More Races | 0.1% |
Age & Sex
30.8
Median Age
48.5%
Female
51.5%
Male
10.0%
Age 65+
Age Distribution
Children (under 15): 26.2% · Seniors (65+): 10.0%
Income & Poverty
| Median household income | $82,755$-12,197 vs state |
| Mean household income | $105,287 |
| Per-capita income | $32,752 |
| Poverty rate | 10.2%+3.8% vs state |
| Unemployment rate | 3.5% |
| Employment-to-population | 62.5% |
Top Industries by Employment
The largest employment sector in Franklin County is professional & business services, accounting for 20.0% of workers.
How residents commute
0.3%
Drive alone
1.1%
Carpool
76.4%
Public transit
7.2%
Work from home
22.2 min
Avg commute
Housing
$345,700$-174,100 vs state
Median home value
$1,171
Median rent
70.1%
Homeownership rate
30,488
Total housing units
95.5%
Occupied
4.5%
Vacant
29.9%
Renter-occupied
Social & access
86.8%
With health insurance
96.3%
With broadband internet
24.2%
Foreign-born
6.3%
Veterans (18+)
11.4%
With a disability
49.9%
Speak language other than English at home
Education
76.6%
High School+
20.4%
Bachelor's+
Largest cities in Washington
Other counties in Washington
Part of Washington
Metro areas in Washington
County rankings
Frequently Asked Questions
Franklin County, Washington has a population of 97,676 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 14th-largest county in Washington. Population density is 79 people per square mile.
The population of Franklin County has grown 28.0% since 2010 (79,076 → 101,238), a +1.78% annualized rate.
The median household income in Franklin County, Washington is $82,755, with mean (average) household income of $105,287 and per-capita income of $32,752. 10.2% of residents live below the federal poverty level.
In Franklin County, the largest racial and ethnic groups are White (51.8%), Hispanic or Latino (3.2%), Black or African American (1.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Franklin County, Washington is 30.8 years. Residents are 48.5% female and 51.5% male.
The median home value in Franklin County is $345,700 and median monthly rent is $1,171. 70.1% of occupied housing units are owner-occupied. The county has 30,488 total housing units, 4.5% of which are vacant.
The largest employment sector in Franklin County, Washington is professional, scientific, and management services, employing 20.0% of workers. The unemployment rate is 3.5%.
Seattle is among the largest cities associated with Franklin County, Washington, with a population of 741,440.
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Statewide data for Washington
Population, race, income, age, and trends across Washington
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.