Counties in Colorado by birth rate (July to June)
Yuma County had the highest birth rate (July to June) of 64 counties in 2021, at 13.86 per 1,000 inhabitants. Hinsdale County had the lowest, at 2.56 per 1,000 inhabitants. The median was 8.99 per 1,000 inhabitants and the figure for Colorado was 10.7 per 1,000 inhabitants. Source: the U.S. Census Bureau.
Top 40 counties, 2021
Full ranking
| Rank | Counties | 2021 |
|---|---|---|
| 1 | Yuma County Estimated | 13.86 |
| 2 | Kiowa County Estimated | 13.77 |
| 3 | Conejos County Estimated | 13.29 |
| 4 | Weld County Estimated | 13.09 |
| 5 | Morgan County Estimated | 13.08 |
| 6 | Phillips County Estimated | 13.06 |
| 7 | Denver County Estimated | 12.9 |
| 8 | El Paso County Estimated | 12.62 |
| 9 | Prowers County Estimated | 12.36 |
| 10 | Cheyenne County Estimated | 12.12 |
| 11 | Alamosa County Estimated | 11.95 |
| 12 | Garfield County Estimated | 11.77 |
| 13 | Kit Carson County Estimated | 11.72 |
| 14 | Adams County Estimated | 11.61 |
| 15 | Costilla County Estimated | 11.54 |
| 16 | Arapahoe County Estimated | 11.46 |
| 17 | Moffat County Estimated | 11.28 |
| 18 | Otero County Estimated | 11.14 |
| 19 | Rio Grande County Estimated | 10.72 |
| 20 | Montezuma County Estimated | 10.28 |
| 21 | Saguache County Estimated | 10.22 |
| 22 | Washington County Estimated | 10.13 |
| 23 | Baca County Estimated | 10.04 |
| 24 | Pueblo County Estimated | 10.04 |
| 25 | Lake County Estimated | 9.99 |
| 26 | Delta County Estimated | 9.89 |
| 27 | Mesa County Estimated | 9.72 |
| 28 | Douglas County Estimated | 9.58 |
| 29 | Jefferson County Estimated | 9.3 |
| 30 | Eagle County Estimated | 9.22 |
| 31 | Las Animas County Estimated | 9.16 |
| 32 | Logan County Estimated | 9.09 |
| 33 | Archuleta County Estimated | 8.89 |
| 34 | Rio Blanco County Estimated | 8.79 |
| 35 | Montrose County Estimated | 8.71 |
| 36 | Elbert County Estimated | 8.58 |
| 37 | Broomfield County Estimated | 8.58 |
| 38 | Larimer County Estimated | 8.36 |
| 39 | Custer County Estimated | 8.17 |
| 40 | Summit County Estimated | 8 |
| 41 | La Plata County Estimated | 7.9 |
| 42 | Fremont County Estimated | 7.69 |
| 43 | Chaffee County Estimated | 7.65 |
| 44 | Boulder County Estimated | 7.59 |
| 45 | Gunnison County Estimated | 7.48 |
| 46 | Pitkin County Estimated | 7.37 |
| 47 | Routt County Estimated | 7.33 |
| 48 | Lincoln County Estimated | 7.18 |
| 49 | Grand County Estimated | 7.15 |
| 50 | Park County Estimated | 7.1 |
| 51 | Ouray County Estimated | 7.04 |
| 52 | San Juan County Estimated | 6.9 |
| 53 | Teller County Estimated | 6.84 |
| 54 | Dolores County Estimated | 6.8 |
| 55 | Sedgwick County Estimated | 6.78 |
| 56 | Bent County Estimated | 6.66 |
| 57 | San Miguel County Estimated | 6.57 |
| 58 | Huerfano County Estimated | 6.39 |
| 59 | Gilpin County Estimated | 5.98 |
| 60 | Crowley County Estimated | 5.23 |
| 61 | Clear Creek County Estimated | 5.22 |
| 62 | Mineral County Estimated | 4.47 |
| 63 | Jackson County Estimated | 4.38 |
| 64 | Hinsdale County Estimated | 2.56 |
Other periods
About this ranking
Estimated live births from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.
Published Census population estimates rate. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth rates.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Colorado by birth rate (July to June) using official data, and cite the source.
rank_places {"indicator":"crude_birth_rate_july_june","level":"province","within":"Colorado","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=crude_birth_rate_july_june&level=province&within=Colorado&limit=10
Questions
Which county has the highest birth rate (July to June)?
Yuma County, with 13.86 per 1,000 inhabitants in 2021, according to the U.S. Census Bureau.
Which county has the lowest birth rate (July to June)?
Hinsdale County, with 2.56 per 1,000 inhabitants in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.
Crude birth rate, July to June: other rankings
- US states
- US counties
- Counties in Texas
- Counties in Georgia
- Counties in Virginia
- Counties in Kentucky
- Counties in Missouri
- Counties in Kansas
- Counties in Illinois
- Counties in North Carolina
- Counties in Iowa
- Counties in Tennessee
Counties in Colorado: more rankings
- Asian population share
- Bachelor's degree or higher, population 25 and over
- Live births, July to June
- Black or African American population share
- Crude death rate, July to June
- Deaths, July to June
- Foreign-born population share
- Real GDP growth
- GDP per capita, US dollars
- Gross domestic product (GDP), US dollars
- Hispanic or Latino population share
- Homeownership rate (US, housing units)
- Median age
- Median gross rent (monthly)
- Median home value
- Median household income