Delta County, Colorado Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 18th-largest in Colorado
The population of Delta County, Colorado is 31,353 as of the 2023 American Community Survey, making it the 18th-largest county in Colorado. The median household income is $58,330, the median home value is $318,000, and the median age is 48.4.
The population of Delta County has grown 4.4% since 2010 (30,858 → 32,215), a +0.31% annualized rate.
31,353
Population
+0.31%
Annual growth
27
People / sq mi
$58,330
Median Income
$318,000
Median Home Value
Delta County covers 1,142 sq mi of land at 27.5 people per square mile.
About Delta County, CO
Delta County is a county in Colorado with a population of 31,353. It ranks #18 among counties in Colorado by population. The median age is 48.4, older than the national median. The population is 49.7% male and 50.3% female.
The median household income in Delta County is $58,330, below the US median of $74,580. 10.8% of residents live below the federal poverty level. Home values sit at a median of $318,000, with monthly rent averaging $1,080. The homeownership rate of 76.4% is higher than the national rate of 64.8%.
Educational attainment in Delta County reflects 25.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 14.5% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 26.3 minutes each way.
Delta County Population History (2010-2024)
The county of Delta County had a population of 30,858 in 2010 and 32,215 in 2024, a 4.4% growth over 14 years. The peak was 32,215 in 2024. Average annual growth rate: 0.31%.
32,215
Population (2024)
30,858
Population (2010)
32,215
Peak (2024)
0.31%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 30,858 |
| 2011 | 30,398 |
| 2012 | 30,473 |
| 2013 | 30,349 |
| 2014 | 29,973 |
| 2015 | 29,925 |
| 2016 | 30,352 |
| 2017 | 30,516 |
| 2018 | 30,835 |
| 2019 | 31,021 |
| 2020 | 31,056 |
| 2021 | 31,387 |
| 2022 | 31,573 |
| 2023 | 31,760 |
| 2024 | 32,215 |
Race & Ethnicity
| White | 86.7% |
| Black or African American | 0.8% |
| Asian | 0.2% |
| Hispanic or Latino (any race) | 2.3% |
| Two or More Races | 0.0% |
Age & Sex
48.4
Median Age
50.3%
Female
49.7%
Male
27.7%
Age 65+
Age Distribution
Children (under 15): 15.6% · Seniors (65+): 27.7%
Income & Poverty
| Median household income | $58,330$-34,140 vs state |
| Mean household income | $82,168 |
| Per-capita income | $35,746 |
| Poverty rate | 10.8%+4.9% vs state |
| Unemployment rate | 1.5% |
| Employment-to-population | 46.9% |
Top Industries by Employment
The largest employment sector in Delta County is professional & business services, accounting for 20.9% of workers.
How residents commute
0.1%
Drive alone
3.8%
Carpool
72.0%
Public transit
14.5%
Work from home
26.3 min
Avg commute
Housing
$318,000$-184,200 vs state
Median home value
$1,080
Median rent
76.4%
Homeownership rate
14,931
Total housing units
84.7%
Occupied
15.3%
Vacant
23.6%
Renter-occupied
Social & access
89.0%
With health insurance
89.9%
With broadband internet
44.5%
Foreign-born
9.9%
Veterans (18+)
19.2%
With a disability
90.9%
Speak language other than English at home
Education
91.0%
High School+
25.7%
Bachelor's+
Largest cities in Colorado
Other counties in Colorado
Part of Colorado
Metro areas in Colorado
County rankings
Frequently Asked Questions
Delta County, Colorado has a population of 31,353 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 18th-largest county in Colorado. Population density is 27 people per square mile.
The population of Delta County has grown 4.4% since 2010 (30,858 → 32,215), a +0.31% annualized rate.
The median household income in Delta County, Colorado is $58,330, with mean (average) household income of $82,168 and per-capita income of $35,746. 10.8% of residents live below the federal poverty level.
In Delta County, the largest racial and ethnic groups are White (86.7%), Hispanic or Latino (2.3%), Black or African American (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Delta County, Colorado is 48.4 years. Residents are 50.3% female and 49.7% male.
The median home value in Delta County is $318,000 and median monthly rent is $1,080. 76.4% of occupied housing units are owner-occupied. The county has 14,931 total housing units, 15.3% of which are vacant.
The largest employment sector in Delta County, Colorado is professional, scientific, and management services, employing 20.9% of workers. The unemployment rate is 1.5%.
Denver is among the largest cities associated with Delta County, Colorado, with a population of 713,734.
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Statewide data for Colorado
Population, race, income, age, and trends across Colorado
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.