Franklin County, Washington
Franklin County, Washington, has 102,612 residents (July 2025 estimate). Its county seat is Pasco. It uses Pacific Time and covers 1,242 sq mi (3,216 km²) of land.
- Resident population, July 2025
- 102,612
- Land area
- 1,242 sq mi (3,216 km²)
- County seat or government
- Pasco
- Time zone
- Pacific TimeUTC-08:00 in January; UTC-07:00 in July
- Median household income
- $86,714 ± $4,594
- Median home value
- $379,300 ± $9,109
- Median rent, with utilities
- $1,198 ± $67
- Homes lived in by their owners
- 71% ± 2.1 points
- County type
- County
- Metro or micro area
- Kennewick-Richland, WA metro areaCentral county
- Water area
- 23.4 sq mi (60.5 km²)
- State
- Washington
- County code (FIPS)
- 53021
- Coordinates (central point)
- 46.537502, -118.903891
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Franklin County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Pacific TimeAmerica/Los_Angeles | UTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 9930187,044 people
- 9934419,534 people
- 993266,336 people
- 993433,215 people
- 993301,210 people
- 99371394 people
- 99335229 people
7 ZIP Code areas overlap Franklin County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Franklin County, largest first
- Pasco School District86,652 people
- Othello School District16,789 people
- North Franklin School District10,847 people
- Washtucna School District394 people
- Star School District390 people
- Kahlotus School District252 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Pasco, Washington (city)79,575 people
- Connell, Washington (city)5,054 people
- Basin City, Washington (CDP)1,176 people
- West Pasco, Washington (CDP)1,122 people
- Mesa, Washington (city)502 people
- Kahlotus, Washington (city)124 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Walla Walla County, Washington28 mi southeast
- Benton County, Washington36 mi southwest
- Adams County, Washington38 mi northeast
- Columbia County, Washington50 mi east
- Grant County, Washington54 mi northwest
- Whitman County, Washington70 mi east
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.