Post Falls, Idaho

Post Falls population, 2020 to 2024

Post Falls added 6,496 residents from July 2020 to July 2024, a change of +16.5%. In the latest year it moved by +915. Among 36 Idaho places of 5,000 or more, that growth ranks 9th; the median place changed by +8.3%. The median place of 5,000+ in Idaho has 16,745 people, so Post Falls is 2.7 times that size.

Post Falls covers 19.12 square miles of land and 0.03 of water, for 2,395 people per square mile of land. The median Idaho place of 5,000+ has 2,389, so Post Falls is close to the typical town.

What county Post Falls is in

All of Post Falls's residents live in Kootenai County, which had 188,323 residents in 2024. Post Falls holds 24.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Post Falls

1 ZIP Code Tabulation Area (ZCTA) overlaps Post Falls by at least 10% of the ZCTA's or the city's land: 83854. 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 Post Falls is

The Census internal point of Post Falls is at 47.725600, -116.944200. Boise, the capital, is 286.0 miles S in a straight line. The nearest larger place is Coeur d'Alene, ID (57,355 people), 7.1 miles away. The nearest city of 100,000 or more is Spokane Valley, WA, 14.1 miles away.

Daylight in Post Falls

At 47.73° N, Post Falls gets about 16 h 00 min of daylight around the June solstice and 8 h 25 min around the December solstice, a swing of 7 h 36 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Post Falls

The eight nearest incorporated places of 1,000+ in Idaho, measured between internal points. The closest is Rathdrum, 5.3 miles away, with 12,626 people.