Twin Falls, Idaho

Twin Falls population, 2020 to 2024

Twin Falls added 3,473 residents from July 2020 to July 2024, a change of +6.7%. In the latest year it moved by +475. Among 36 Idaho places of 5,000 or more, that growth ranks 22nd; the median place changed by +8.3%. The median place of 5,000+ in Idaho has 16,745 people, so Twin Falls is 3.3 times that size.

Twin Falls covers 19.86 square miles of land and 0.12 of water, for 2,799 people per square mile of land. The median Idaho place of 5,000+ has 2,389, so Twin Falls is denser than the typical town.

What county Twin Falls is in

All of Twin Falls's residents live in Twin Falls County, which had 96,509 residents in 2024. Twin Falls holds 57.6% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Twin Falls

1 ZIP Code Tabulation Area (ZCTA) overlaps Twin Falls by at least 10% of the ZCTA's or the city's land: 83301. 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 Twin Falls is

The Census internal point of Twin Falls is at 42.563800, -114.460600. Boise, the capital, is 114.6 miles NW in a straight line. The nearest larger place is Pocatello, ID (58,231 people), 103.6 miles away. The nearest city of 100,000 or more is Boise City, ID, 114.4 miles away.

Daylight in Twin Falls

At 42.56° N, Twin Falls gets about 15 h 19 min of daylight around the June solstice and 9 h 03 min around the December solstice, a swing of 6 h 15 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Twin Falls

The eight nearest incorporated places of 1,000+ in Idaho, measured between internal points. The closest is Kimberly, 5.0 miles away, with 5,592 people.