Koosharem is a town in Sevier County, Utah, United States. Koosharem is also known as "Grass Valley". It generally comprises the area known as Burrville, Utah on the north, south through the valley and through the town of Koosharem and down to the south end with the town of Greenwich, Utah. The valley is made up of private lands nestled within the Fishlake National Forest. Koosharem is situated at the cross-roads for travelers going between Capitol Reef National Park and Bryce Canyon National Park and/or Zion National Park. Koosharem is also the closest town to the famous Fish Lake. The town also serves as an important point along the many trails of the Piute ATV Trail System. Koosharem's o…

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code84744

Area code435

Living in Koosharem

Work & commute in Koosharem

Full picture →

Most working residents leave Koosharem for work: only 1% work in town. The top destinations are Richfield (26%), Nephi (5%) and Salt Lake City (5%). Half commute less than 54 miles.

Richfield

26%

Nephi

Salt Lake City

Glenwood

1%Work in townlive and work in Koosharem 54 miWhere do people commute?the commute map 151Jobs based herea job hub

Census LEHD 2023 · ACSWork & commute in Koosharem →

Health in Koosharem

Compared with Utah

8better than UT·9worse

of 32 measures CDC estimates. The other 15 are too close to call.

Conditions 8▼ 4 close Habits all close Care 4▲ 1▼ 2 close Mind all close Everyday needs 4▲ 0 close

BetterToo close to callWorse

What stands out

7.4%Fewer adults facing housing insecurityUT 10% · better 9.5%Fewer adults facing food insecurityUT 12.4% · better 7.8%More adults with heart diseaseUT 4.7% · worse

Care nearby

Intermountain Health Sevier Valley HospitalRichfield · 21.5 mi · ER

Fourpoints Health - Richfield ClinicRichfield · 20.3 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Koosharem · CMS · HRSAHealth in Koosharem →

Natural hazards in Koosharem

High

Expected storm and flood damage is higher than in 61% of U.S. communities.

🏔️ Avalanches🌊 Inland flooding🏚️ Earthquakes

0Does Koosharem flood?no paid flood claims on record NoneDisasters that paid out hereof 7 declared for Sevier County

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Koosharem →

Climate in Koosharem

Full climate →

Koosharem has cold winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 12°, and about 19 inches of snow falls in a normal winter.

40° / 13°Winter

56° / 28°Spring

80° / 46°Summer

60° / 29°Fall

How much snow does Koosharem get?About 19 inches a winter.Rain & snow →When is the first frost?Around Sep 21, with the last in spring around Jun 6.Frost dates →Is it warmer than it used to be?+1.7° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Koosharem →

Schools in Koosharem

All Koosharem schools →

B⁺

School Grade B+

The public schools Koosharem’s kids attend, from kindergarten through graduation, outperform 67% of Utah’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

DistrictSevier DistrictSchools2

Koosharem School D-Elementary · Grades K–6 · 26 students Sorenson's Ranch SchoolHigh · Grades 7–12 · 58 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within UT. Ratings are from neighbors.