Johnstown, Colorado Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Johnstown, Colorado is 18,075 as of the 2023 American Community Survey, making it the 45th-largest city in Colorado. The median household income is $130,851, the median home value is $493,500, and the median age is 34.0.
The population has grown 107.2% since 2010 (9,960 → 20,639).
18,075
Population
1160
People / sq mi
$130,851
Median Income
$493,500
Median Home Value
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Johnstown covers 15.6 sq mi of land at 1160 people per square mile.
About Johnstown, CO
The poverty rate is what most separates Johnstown from the typical city: 0.0% of residents live below the federal poverty line, against 12.4% nationally. With 18,075 residents, Johnstown is a city in Colorado. It ranks #45 among cities in Colorado by population.
Households take in a median $130,851, comfortably above the US median of $78,538. Hardship is rare relative to US cities: a poverty rate of just 0.0%, below the national 12.4%. Home values run above average at $493,500, with typical rent around $1,767.
37.0% of adults 25 and older hold a bachelor’s degree, above the national average of 35.0%. About 15.0% of the workforce is home-based, above the national 14.0%, and the average commute runs about 29 minutes each way.
Johnstown town Population History (2010-2024)
The city of Johnstown town had a population of 9,960 in 2010 and 20,639 in 2024, a 2.1× growth over 14 years. The peak was 20,639 in 2024. Average annual growth rate: 5.39%.
20,639
Population (2024)
9,960
Population (2010)
20,639
Peak (2024)
5.39%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,960 |
| 2011 | 10,213 |
| 2012 | 10,641 |
| 2013 | 11,352 |
| 2014 | 12,227 |
| 2015 | 13,005 |
| 2016 | 13,470 |
| 2017 | 13,826 |
| 2018 | 14,106 |
| 2019 | 15,198 |
| 2020 | 17,367 |
| 2021 | 18,213 |
| 2022 | 18,618 |
| 2023 | 19,514 |
| 2024 | 20,639 |
Race & Ethnicity
| White | 80.7% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.2% |
Economy & Income
$130,851
Median Household Income
$48,568
Per Capita Income
0.0%
Poverty Rate
3.3%
Unemployment Rate
Housing
$493,500
Median Home Value
$1,767
Median Rent
77.3%
Owner-Occupied
Education
94.8%
High School+
37.0%
Bachelor's+
Commute
0.0%
Drive Alone
74.3%
Public Transit
15.0%
Work From Home
29.0 min
Avg Commute
Community Profile
43.0%
Foreign Born
91.0%
Non-English at Home
8.2%
Veterans
8.3%
With Disability
95.2%
Health Insurance
98.4%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 18.1% |
| Manufacturing | 12.6% |
| Finance, Insurance & Real Estate | 11.1% |
| Construction | 9.4% |
| Retail Trade | 6.2% |
| Agriculture & Mining | 6.0% |
| Information | 5.9% |
| Arts, Entertainment & Food Services | 5.4% |
| Education, Health Care & Social Services | 3.1% |
| Public Administration | 3.0% |
| Transportation & Warehousing | 1.8% |
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City rankings
Frequently Asked Questions
Johnstown, Colorado has a population of 18,075 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 45th-largest city in Colorado.
The median household income in Johnstown, Colorado is $130,851, with 0.0% of residents living below the federal poverty level.
The median home value in Johnstown, Colorado is $493,500, with median monthly rent at $1,767 and a homeownership rate of 77.3%.
The median age in Johnstown, Colorado is 34.0 years. The population is 54.0% male and 46.0% female.
The population has grown 107.2% since 2010 (9,960 → 20,639).
Where to stay in Johnstown
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.