The states with the highest birth rates are:

1. Utah (14.9)

2. North Dakota (14.0)

3. Alaska (13.7)

4. South Dakota (13.5)

5. Texas (13.2)

6. Nebraska (13.2)

7. District of Columbia (13.1)

8. Oklahoma (12.6)

9. Kansas (12.5)

10. Mississippi (12.4)

Utah has the highest birth rate in the United States of 14.9 per 1,000 population. This is likely because of Utah’s large Mormon population, which is also the reason that Utah has the largest average household size in the country and the lowest median age in the country of 29.2.

Here are the 10 states with the highest fertility rates:

1. South Dakota (73.6)

2. North Dakota (72.2)

3. Alaska (69.3)

4. Nebraska (68.4)

5. Utah (68.4)

6. Kansas (64.7)

7. Oklahoma (64.6)

8. Louisiana (64.3)

9. Hawaii (64.2)

10. Arkansas (64)