Appendix A: Qualified Census Tracks (QCTS), Difficult Development Areas (DDAS), and Rural Counties

Table of Contents

 Effective January 1, 2027

Section 1 - QCTS and DDAS

A. Metropolitan QCTs

Metropolitan QCTs
Metropolitan Statistical AreaCounty NameCensus Track Number
AmesStory7.00, 10.00, 11.01, 11.02, 13.04
Cedar RapidsLinn10.04, 10.05, 18.00, 19.00, 22.00, 27.00
DavenportScott106.00, 107.00, 108.00, 109.00, 123.00, 125.01
Des Moines-West Des MoinesPolk1.01, 3.00, 5.00, 7.01, 11.00, 12.00, 17.00, 21.00, 26.00, 27.00, 39.01, 46.02, 47.01, 47.02, 48.00, 49.00, 50.00, 52.00, 111.11
DubuqueDubuque1.00, 5.00
Iowa CityJohnson2.00, 4.01, 5.02, 6.00, 11.00, 16.01, 16.02, 21.00, 104.01
Nebraska/IowaPottawattamie302.00, 304.01, 306.02, 307.00, 309.00, 313.00
Sioux CityWoodbury8.00, 13.00, 15.00, 36.00
Waterloo-Cedar FallsBlack Hawk1.00, 2.00, 3.00, 17.02, 18.00, 23.03, 23.04

B. Non-Metropolitan QCTs

Non-Metropolitan QCTs
County NameCensus Tract Number
Appanoose9503.00
Audubon702.00
Cass1905.00
Cherokee801.01
Clinton1.00, 3.00
Des Moines3.00, 4.00
Fayette804.00
Hardin4802.00
Jefferson903.02
Lee4908.00
Mahaska9507.00
Muscatine509.00
Wapello9602.00, 9610.00
Webster7.00

C. Metropolitan QCTs

Difficult Development Areas (DDAs)

Section 2 โ€“ Rural Counties

Rural: Any city located in this state, except those located wholly within one or more of the eleven most populous counties in the state. Listed below are the 11 most populous counties in Iowa, as determined by the most recent 5-year population estimates issued by the United States Census Bureau. Any project located in one of the 11 counties listed below is not considered Rural.

  • Black Hawk
  • Dallas
  • Dubuque
  • Johnson
  • Linn
  • Polk
  • Pottawattamie
  • Scott
  • Story
  • Warren
  • Woodbury

Section 3 โ€“ Data Citations

Section 1: Department of Housing and Urban Development, Docket No. FR-6565-N-02, published 10/06/2026.

Section 2: U.S. Census Bureau, U.S. Department of Commerce. "Total Population." American Community Survey, ACS 5-Year Estimates Detailed Tables, Table B01003, U.S. Census Bureau