† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupJohnstownColoradoUnited States
German25.4%17.9%12.5%
English14.7%12.6%9.5%
Irish12.5%11.2%9.4%
Italian5.0%4.9%4.8%
American4.5%3.5%5.3%
Scottish3.0%2.5%1.3%
Swedish1.7%——
Norwegian1.5%——
Mexican15.6%15.8%11.3%
Spaniard0.7%1.0%—
Spanish0.6%1.2%—
Puerto Rican0.5%0.7%1.8%
Salvadoran0.3%0.3%0.7%
Cuban0.2%0.3%0.7%
Colombian0.2%0.3%0.4%
Guatemalan0.2%—0.5%
Chinese0.2%0.6%1.3%
Asian Indian0.2%0.6%1.4%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Johnstown
Colorado
United States
Median age
34.9
37.9
39.1
Age 18–24
8.7%
9.2%
9.2%
Age 65 and older
9.3%
15.5%
17.2%
Household economy
Measure
Johnstown
Colorado
United States
Median household income
$128,995
$95,470
$84,427
Poverty rate
3.7%
9.5%
12.5%
Bachelor's degree or higher (25+)
38.5%
45.5%
35.6%
Languages at home
Measure
Johnstown
Colorado
United States
Speaks a non-English language at home
8.4%
16.2%
22.3%
Spanish
6.2%
11.1%
13.6%
Religious landscape
Measure
Johnstown
Colorado
United States
Catholic
—
15.1%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
64.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Johnstown, Colorado
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−39.3%
2008
−22.5%
2012
−25.1%
2016
−32.7%
2020
−28.2%
2024
−25.0%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
36.3%Harris4,217
61.2%Trump7,124
2.5%
R+25.0
D+3.2
R+23.5
11,632
R
34.7%Biden3,512
62.9%Trump6,361
2.4%
R+28.2
D+4.5
R+32.6
10,112
R
28.6%Clinton2,265
61.2%Trump4,857
10.2%
R+32.7
R+7.5
R+34.8
7,932
R
35.9%Obama2,041
61.1%Romney3,469
3.0%
R+25.1
R+2.7
R+29.0
5,678
R
37.7%Obama1,911
60.2%McCain3,050
2.0%
R+22.5
D+16.8
R+29.8
5,064
R
30.0%Kerry1,298
69.3%Bush2,996
0.7%
R+39.3
—
R+36.8
4,323
Johnstown sits at the edge of the Denver-Boulder metro's northward expansion, where rapid population growth in Weld County has made formerly safe Republican margins increasingly competitive in recent election cycles.
Across the recorded series it reached a Republican high of 39.3 points in 2004. Between 2020 and 2024 the city moved 3.2 points toward the Democratic candidate; the 2024 margin was 25.0 points.
A population of 18,883, a 75% non-Hispanic-white share, and a median household income of $128,995 describe the city. The city's voting pattern over the last decade is most similar to that of Severance and West Richland.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, Johnstown, Colorado voted Republican by 25.0 points (R+25.0), carried by the Republican candidate. Out of 11,632 votes cast, 4,217 went Democratic and 7,124 went Republican.
How many people live in Johnstown, Colorado?
Johnstown, Colorado has a population of 18,883 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Johnstown, Colorado?
Median household income in Johnstown, Colorado is $128,995 — above the national median of $80,734. The Colorado state median is $95,470.
What is the political history of Johnstown, Colorado?
Akashic tracks 6 presidential elections in Johnstown, Colorado from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
