OMB County Classifications

July 2016, updated July 2017

The maps below show the county classifications based on the Office of Management and Budget (OMB), which classifies metropolitan counties (“urban”) and nonmetropolitan counties (“rural”). Nonmetropolitan (rural) counties can be further split into two categories: micropolitan and noncore counties.

OMB Rural and Urban County Designations (2015)

This map of the United States shows counties classified as metropolitan, micropolitan, and noncore. A text description of this map is included in the webpage content.

Click on the map for a larger, downloadable and shareable version.

This map of the United States depicts urban and rural counties across America using the Office of Management and Budget classifications. In general, Metropolitan counties (1,236 counties) are more prevalent along both the Atlantic and Pacific coasts, and throughout the eastern and Midwestern states. Micropolitan (663 counties) and Noncore (1,334) counties are more common in the Northeast, parts of Northern Midwest, the Great Plains, and the Rocky Mountain region.

To browse or download the data this map was created with, use our Disability Counts Data Finder tool.

Map produced July 2017.

OMB Rural and Urban County Designations (2014)

This map of the United States shows counties classified as metropolitan, micropolitan, and noncore. A text description of this map is included in the webpage content.

Click on the map for a larger, downloadable and shareable version.

This map of the United States depicts urban and rural counties across America using the Office of Management and Budget classifications. In general, Metropolitan (1,235) counties are more prevalent along both the Atlantic and Pacific coasts, and throughout the eastern and Midwestern states. Micropolitan (646) and Noncore (1,339) counties are more common in the northeast, parts of northern Midwest, the Great Plains, and Rocky Mountains.

Map produced by RTC:Rural, July 2016.

This work is part of the RTC:Rural Geography of Disability Project.