Phillips County, Colorado Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 54th-largest in Colorado
The population of Phillips County, Colorado is 4,491 as of the 2023 American Community Survey, making it the 54th-largest county in Colorado. The median household income is $60,372, the median home value is $255,300, and the median age is 40.3.
The population of Phillips County has grown 0.4% since 2010 (4,471 → 4,488), a +0.03% annualized rate.
4,491
Population
+0.03%
Annual growth
7
People / sq mi
$60,372
Median Income
$255,300
Median Home Value
Phillips County covers 688 sq mi of land at 6.5 people per square mile.
About Phillips County, CO
Phillips County stands apart on settlement density — it is among the most sparsely settled of US counties, at roughly 7 people per square mile. With 4,491 residents, Phillips County is a county in Colorado.
The typical household here earns about $60,372, below the US median of $78,538. The poverty rate is 15.9%, above the national 12.4%. Home values run above average at $255,300, with typical rent around $947.
Degree attainment is mid-range for US counties: 25.7% of adults hold a four-year degree, below the national 35.0%. About 11.2% of workers primarily work from home, below the national 14.0%, and the average commute runs about 20 minutes each way.
Phillips County Population History (2010-2024)
The county of Phillips County had a population of 4,471 in 2010 and 4,488 in 2024, a 0.4% growth over 14 years. The peak was 4,531 in 2020. Average annual growth rate: 0.04%.
4,488
Population (2024)
4,471
Population (2010)
4,531
Peak (2020)
0.04%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 4,471 |
| 2011 | 4,402 |
| 2012 | 4,417 |
| 2013 | 4,384 |
| 2014 | 4,394 |
| 2015 | 4,328 |
| 2016 | 4,307 |
| 2017 | 4,339 |
| 2018 | 4,343 |
| 2019 | 4,359 |
| 2020 | 4,531 |
| 2021 | 4,508 |
| 2022 | 4,464 |
| 2023 | 4,490 |
| 2024 | 4,488 |
Race & Ethnicity
| White | 81.7% |
| Black or African American | 0.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.6% |
| Two or More Races | 0.0% |
Age & Sex
40.3
Median Age
51.9%
Female
48.1%
Male
17.9%
Age 65+
Age Distribution
Children (under 15): 23.3% · Seniors (65+): 17.9%
Income & Poverty
| Median household income | $60,372$-32,098 vs state |
| Mean household income | $99,893 |
| Per-capita income | $43,285 |
| Poverty rate | 15.9%+10.0% vs state |
| Unemployment rate | 0.5% |
| Employment-to-population | 63.2% |
Top Industries by Employment
The largest employment sector in Phillips County is agriculture, accounting for 18.2% of workers.
How residents commute
0.0%
Drive alone
1.8%
Carpool
76.9%
Public transit
11.2%
Work from home
20.0 min
Avg commute
Housing
$255,300$-246,900 vs state
Median home value
$947
Median rent
74.9%
Homeownership rate
2,085
Total housing units
89.2%
Occupied
10.8%
Vacant
25.1%
Renter-occupied
Social & access
94.5%
With health insurance
90.4%
With broadband internet
23.4%
Foreign-born
8.2%
Veterans (18+)
13.3%
With a disability
76.2%
Speak language other than English at home
Education
90.5%
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
Phillips County, Colorado has a population of 4,491 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 54th-largest county in Colorado. Population density is 7 people per square mile.
The population of Phillips County has grown 0.4% since 2010 (4,471 → 4,488), a +0.03% annualized rate.
The median household income in Phillips County, Colorado is $60,372, with mean (average) household income of $99,893 and per-capita income of $43,285. 15.9% of residents live below the federal poverty level.
In Phillips County, the largest racial and ethnic groups are White (81.7%), Hispanic or Latino (2.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Phillips County, Colorado is 40.3 years. Residents are 51.9% female and 48.1% male.
The median home value in Phillips County is $255,300 and median monthly rent is $947. 74.9% of occupied housing units are owner-occupied. The county has 2,085 total housing units, 10.8% of which are vacant.
The largest employment sector in Phillips County, Colorado is agriculture, forestry, fishing, and mining, employing 18.2% of workers. The unemployment rate is 0.5%.
Denver is among the largest cities associated with Phillips County, Colorado, with a population of 713,734.
Phillips County, CO Climate
Phillips County, CO has an average annual temperature of 9.9°C (50°F) and receives about 446 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.9°C
Avg Temp
446
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -3° / 26° | 12 mm |
| February | 0° / 32° | 10 mm |
| March | 4° / 39° | 28 mm |
| April | 9° / 48° | 42 mm |
| May | 15° / 58° | 84 mm |
| June | 20° / 68° | 78 mm |
| July | 23° / 74° | 70 mm |
| August | 23° / 73° | 48 mm |
| September | 17° / 63° | 31 mm |
| October | 10° / 51° | 19 mm |
| November | 3° / 37° | 14 mm |
| December | -2° / 29° | 10 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Phillips County, CO
The most comfortable months to visit Phillips County, CO are typically August, June and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -10°C low). May is usually the wettest month.
Where to stay near Phillips County
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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.