Johnstown is a home rule municipality in Weld and Larimer counties in the U.S. state of Colorado. The population was 17,303 at the 2020 United States census.

Official town website ↗

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

How Johnstown ranks

All →

#8Fastest growing in CO #6Most new homes in CO #35Highest income in CO All CO rankings →

Town numbers

ZIP code80534

Area code970

Living in Johnstown

Housing in Johnstown

$499K▼ 3.1% in a year Typical home value · Zillow

The typical Johnstown home is worth about $499,000, down 3.1% in a year, 6% below the Colorado typical home.

A seller's market

Buyer’sBalancedSeller’s

Days on market56

Sale-to-list99.9%

Sold in May59

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Johnstown

C⁻

Safety Grade C-

Johnstown reports more crime per resident than most U.S. towns we grade: about 81% report less.

Violent crime per 1,000

Johnstown 1.3

Colorado 4.4

U.S. 3.3

Property crime per 1,000

Johnstown 26.2

Colorado 22.3

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Health in Johnstown

Health Grade A

Healthier than 90% of U.S. towns on seven CDC estimates.

Compared with Colorado

8better than CO·1worse

of 26 measures CDC estimates. The other 17 are too close to call.

Conditions 6▲ 6 close Habits all close Care 1▲ 1▼ 5 close Mind 1▲ 2 close

BetterToo close to callWorse

What stands out

6.8%Fewer older adults who have lost all their teethCO 9.2% · better 9%Fewer uninsured adultsCO 11.1% · better 67.9%Fewer adults getting a yearly checkupCO 71.4% · worse

Care nearby

Uchealth Greeley HospitalGreeley · 8.6 mi · ER

South Loveland Community Health CenterLoveland · 10.2 mi · sliding-scale fees

Primary careNo shortage

DentalNo shortage

Mental healthShortage · county-wide

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

Natural hazards in Johnstown

Low

Expected storm and flood damage is higher than in 38% of U.S. communities.

🌊 Inland flooding🥶 Cold waves🌪️ Tornadoes

1Does Johnstown flood?paid flood claims since 2018 2Disasters that paid out herefederal disasters sent FEMA money to Johnstown MapJohnstown vs. its neighborsnearby towns shaded by rating

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

Climate in Johnstown

Full climate →

Johnstown has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 15°, and about 47 inches of snow falls in a normal winter.

45° / 16°Winter

64° / 34°Spring

87° / 55°Summer

66° / 35°Fall

How much snow does Johnstown get?About 47 inches a winter.Rain & snow →When is the first frost?Around Oct 5, with the last in spring around May 7.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 Johnstown →

Schools in Johnstown

All Johnstown schools →

B⁺

School Grade B+

The public schools Johnstown’s kids attend, from kindergarten through graduation, outperform 66% of Colorado’s districts on state tests and graduation. Among towns with similar incomes, they rank near the bottom.

See how Johnstown’s schools compare in CO →

DistrictWeld County School District No. Re-5JSchools5

Riverview PK-8Elementary · Grades PK–8 · 757 students Elwell Elementary School C+Elementary · Grades PK–5 · 618 students Pioneer Ridge Elementary School B-Elementary · Grades K–5 · 528 students Roosevelt Middle School CMiddle · Grades 6–8 · 695 students Roosevelt High School BHigh · Grades 9–12 · 1,184 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 CO. Ratings are from neighbors.