Pasco, Washington

Pasco population, 2020 to 2024

Pasco added 4,038 residents from July 2020 to July 2024, a change of +5.2%. In the latest year it moved by +1,381. Among 125 Washington places of 5,000 or more, that growth ranks 41st; the median place changed by +2.6%. The median place of 5,000+ in Washington has 18,148 people, so Pasco is 4.5 times that size.

Pasco covers 38.96 square miles of land and 3.54 of water, for 2,098 people per square mile of land. The median Washington place of 5,000+ has 2,694, so Pasco is less dense than the typical town.

What county Pasco is in

All of Pasco's residents live in Franklin County, which had 101,238 residents in 2024. Pasco holds 80.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Pasco

1 ZIP Code Tabulation Area (ZCTA) overlaps Pasco by at least 10% of the ZCTA's or the city's land: 99301. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Pasco is

The Census internal point of Pasco is at 46.266100, -119.121400. Olympia, the capital, is 186.9 miles WNW in a straight line. The nearest larger place is Kennewick, WA (86,728 people), 5.4 miles away. The nearest city of 100,000 or more is Spokane, WA, 125.3 miles away.

Daylight in Pasco

At 46.27° N, Pasco gets about 15 h 48 min of daylight around the June solstice and 8 h 36 min around the December solstice, a swing of 7 h 11 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Pasco

The eight nearest incorporated places of 1,000+ in Washington, measured between internal points. The closest is Kennewick, 5.4 miles away, with 86,728 people.