All Countries
Longmont, CO
Full City Profile · Colorado · Boulder County County
3.4
/5.0
B
Good
98,958
Population
3,382/sq mi density
$89,724
Median Income
$47,338 per capita
$541,400
Home Value
$548,639 Zillow
$1,755
Median Rent
33.3% income on rent
47°F
Avg Temperature
309 sunny days/yr
431
Violent Crime/100K
2,602 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$89,724 median income, 3.0% unemployment
B
Affordability
3.3 / 5.0
$541,400 home value, $1,755/mo rent
F
Safety
1.0 / 5.0
431 violent crimes/100K (13% above avg)
A+
Education
4.7 / 5.0
46.3% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+9.8%
90,245 → 99,105
over 10 years
Annual Pop. Growth
+0.94%
Compound annual growth rate
Median Income Change
+52.9%
$58,698 → $89,724
nominal, not inflation-adjusted
Annual Income Growth
+4.33%
Compound annual growth rate
Population Over Time
Total population for Longmont across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
105,813
+6,708 from 2023 (99,105)
Projected Median Income 2030
$120,718
+$30,994 from 2023 ($89,724)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 90,245 | — | $58,698 | — |
| 2015 | 93,090 | +3.2% | $62,208 | +6% |
| 2017 | 94,532 | +1.5% | $66,349 | +6.7% |
| 2019 | 97,316 | +2.9% | $74,242 | +11.9% |
| 2021 | 100,758 | +3.5% | $83,104 | +11.9% |
| 2023 | 99,105 | -1.6% | $89,724 | +8% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.