• county
  • FIPS 08105
  • Largest town: Monte Vista

Rio Grande County, Colorado

Rio Grande County had 11,132 residents in the Census Vintage 2024 estimate, on 912.0 square miles of land. It ranks 37th of 64 in Colorado by population and 45th by land area.

Population
11,132
#37 of 64 in Colorado · #2,334 in US
Area
912.0 sq mi
#45 of 64 in Colorado · #817 in US
Density
12 / sq mi
#31 of 64 in Colorado · #2,493 in US
Median household income
$55,574
#47 of 64 in Colorado · #2,272 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Rio Grande County within Colorado. Pin: Denver.

Measure from here

Tools and pages that start from Rio Grande County

Rio Grande County population, land area and income

Rio Grande County had 11,132 residents in the Census Vintage 2024 estimate, on 912.0 square miles of land. It ranks 37th of 64 in Colorado by population and 45th by land area. That works out to 12.2 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Colorado has 15,336 residents; Rio Grande County is somewhat smaller.

Its SAIPE 2023 median household income of $55,574 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

11,132

3144th1st

2334th of 3,144 (US)

Land area

912 sq mi

3144th1st

817th of 3,144 (US)

Density

12.2 / sq mi

3144th1st

2493rd of 3,144 (US)

Median household income

$55,574

3143rd1st

2272nd of 3,143 (US)

Rank within Colorado (64)

Population

11,132

64th1st

37th of 64 (CO)

Land area

912 sq mi

64th1st

45th of 64 (CO)

Density

12.2 / sq mi

64th1st

31st of 64 (CO)

Median household income

$55,574

64th1st

47th of 64 (CO)

How Rio Grande County's population changed since 2020

Rio Grande County lost 411 residents between the July 2020 and July 2024 estimates, a drop of 3.6%. That ranks 58th of 64 in Colorado for growth. The median Colorado county changed by +1.7%, and the state as a whole by +2.9%.

Since the April 2020 estimates base, Rio Grande County recorded 515 births and 698 deaths, a natural change of -183. Net international migration added -7 and net domestic migration, people moving to or from other US counties, came to -222. The largest single component was domestic migration, which removed 222 people.

11.5k202011.4k202111.3k202211.2k202311.1k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
515
Deaths
698
Net international migration
-7
Net domestic migration
-222
Change, July 2023 to July 2024
-62

Where Rio Grande County is

The Census internal point of Rio Grande County is at 37.485900, -106.453100. It sits in UTM zone 13N. The map shades Colorado's 64 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Rio Grande County outlined. Dots are towns of 1,000+ people with residents in it.

Otero County: -3.6%Lake County: -0.6%Adams County: +4.3%Kit Carson County: +0.2%Phillips County: -0.9%Bent County: +5.5%Lincoln County: -1.1%Washington County: -0.9%Hinsdale County: -5.1%Alamosa County: +1.9%Kiowa County: -4.1%Arapahoe County: +1.8%Archuleta County: +5.1%Montrose County: +4.6%Jefferson County: -0.8%Gilpin County: +2.5%Larimer County: +4.1%Custer County: +17.5%Saguache County: +4.3%Mineral County: +7.1%Broomfield County: +5.1%Logan County: -2.1%Mesa County: +3.4%Eagle County: -2.4%Denver County: +1.6%Pitkin County: -4.2%Boulder County: -0.2%El Paso County: +2.6%Las Animas County: +0.1%San Miguel County: -2.9%Douglas County: +9.3%Cheyenne County: -1.9%Garfield County: +2.2%Ouray County: +6.5%San Juan County: +16.0%Yuma County: +0.8%Elbert County: +12.1%Prowers County: -0.5%Morgan County: +4.2%Delta County: +3.7%Chaffee County: +6.6%Huerfano County: +2.4%Teller County: +0.5%Costilla County: +5.3%Baca County: -3.3%Routt County: +1.6%Conejos County: +1.3%Summit County: -1.1%Clear Creek County: -3.0%Fremont County: +2.5%Rio Blanco County: +1.3%Dolores County: +5.8%Grand County: +2.6%Gunnison County: +2.1%Park County: +5.1%Sedgwick County: -5.5%Montezuma County: +3.7%La Plata County: +2.1%Moffat County: -1.0%Rio Grande County: -3.6%Weld County: +11.5%Pueblo County: +0.9%Jackson County: -7.6%Crowley County: -1.5%
Change 2020 to 2024
  1. < -1.9%
  2. < +0.5%
  3. < +2.4%
  4. < +5.1%
  5. ≥ +5.1%
no data

Orange pin: Rio Grande County internal point. Dark pin: Denver.

Internal point

Decimal
37.485900, -106.453100
DMS
37°29'9.24"N 106°27'11.16"W
UTM
13N 371532.6E 4149768.6N
Geohash
9wsm3855n
Plus code
859MFGPW+9Q

Towns in Rio Grande County

3 incorporated places of 1,000+ people have residents in Rio Grande County, 5,482 people together, or 49% of the county. Each figure counts only the part of the town inside Rio Grande County; towns marked "part" extend into another county. The largest is Monte Vista with 4,030.

  1. 01Monte Vista4,030
  2. 02Del Norte1,410
  3. 03Center (part)42
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Rio Grande County

The Census 2024 county adjacency file lists 5 neighbors for Rio Grande County. The most populous is Alamosa County, CO, with 16,689 residents. Distances run between Census internal points in a straight line.

Distance to Denver and the nearest big city

Denver is 174.7 miles NNE of Rio Grande County's internal point in a straight line. The nearest place of 100,000 or more is Pueblo, CO (population 111,166), 114.1 miles away. The nearest place of 10,000 or more is Durango, CO (population 19,811), 79.5 miles away.

Rio Grande County FIPS code

The FIPS code of Rio Grande County is 08105: state code 08 for Colorado plus county code 105. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $55,574.

Questions people ask

What is the population of Rio Grande County, Colorado?

The Census Vintage 2024 estimate for July 1, 2024 is 11,132. That is down 411 people (3.6%) from the July 2020 estimate of 11,543.

What is the FIPS code of Rio Grande County?

08105. The first two digits (08) are Colorado; the last three (105) identify the county.

What is the largest town in Rio Grande County?

Monte Vista, with 4,030 residents inside Rio Grande County in 2024.

Which counties border Rio Grande County?

5 county-equivalents border it in the Census 2024 adjacency file: Alamosa County, CO; Archuleta County, CO; Conejos County, CO; Saguache County, CO; Mineral County, CO.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.