Portland, Ore., has been named the top the place to have a baby, according to Fit Pregnancy magazine.

The study ranked cities by affordability; birth risk and health factors; breastfeeding; birthing options; stroller friendliness; fertility laws and services; hospitals and doctors; safety; and child care.

The top cities in this year's rankings are:

1. Portland, Ore.
2. Minneapolis
3. San Francisco
4. Seattle
5. Denver
6. Boston
7. Omaha, Neb.
8. Virginia Beach, Va.
9. Austin, Texas
10. Albuquerque, N.M.

The study ranked the country's 50 largest cities based on census population estimates. Coming in at the bottom of the list for the second straight year was Detroit. Philadelphia; Long Beach, Calif.; Memphis, Tenn.; and Las Vegas ranked 46-49.

Boston fell to the sixth spot in the survey after finishing No. 1 in 2007. San Francisco was second last year, with Minneapolis, Portland and Omaha rounding out the top five.

Virginia Beach, Austin, Texas, and Albuquerque, N.M. were new entries to the top 10 from 2007.