Congressional district · Boundaries of the 119th Congress

Iowa's 3rd district

Iowa's 3rd district has 816,359 residents on 10,673 mi² of land. It is represented by Zachary Nunn (R-IA-3). Federal contract obligations attributed to it reached $140.1M in FY2026.

Residents
816,359
Land area
10,673 mi²
Counties
21
Representative
Zachary Nunn
Map of Iowa's 3rd district within Iowa

Members for this district

Members who held this seat while these boundaries were in force, newest first.

Senators

The state's senators today, or on the last day of these boundaries for an older plan.

Counties

Share of the district's residents living in each county, and share of the county's residents living in the district (2020 census tracts weighted by their overlap).

  1. Polk County62% of the district · 100% of the county
  2. Dallas County13% of the district · 100% of the county
  3. Wapello County4.3% of the district · 100% of the county
  4. Madison County2.1% of the district · 100% of the county
  5. Page County1.9% of the district · 100% of the county
  6. Cass County1.6% of the district · 100% of the county
  7. Appanoose County1.5% of the district · 100% of the county
  8. Union County1.5% of the district · 100% of the county
  9. Guthrie County1.3% of the district · 100% of the county
  10. Montgomery County1.3% of the district · 100% of the county
  11. Clarke County1.2% of the district · 100% of the county
  12. Davis County1.1% of the district · 100% of the county
  13. Lucas County1.1% of the district · 100% of the county
  14. Greene County1.1% of the district · 100% of the county
  15. Decatur County1.0% of the district · 100% of the county
  16. Monroe County0.9% of the district · 100% of the county
  17. Adair County0.9% of the district · 100% of the county
  18. Wayne County0.8% of the district · 100% of the county
  19. Taylor County0.7% of the district · 100% of the county
  20. Ringgold County0.6% of the district · 100% of the county
  21. Adams County0.4% of the district · 100% of the county

Federal contracts

Contract obligations attributed to the district by each action's county and its award's ZIP code (land shares through census tracts); an estimate where ZIP codes cross district lines.

Obligations · FY2026
$140.1M
Per resident
$172
Rank in Iowa
4 of 4
Contract actions
18.2K
New awards: 17.7K

By fiscal year

  1. 162.5MFY2017
  2. 152.5MFY2018
  3. 162.6MFY2019
  4. 250.4MFY2020
  5. 181.9MFY2021
  6. 161.7MFY2022
  7. 280.9MFY2023
  8. 174MFY2024
  9. 249.1MFY2025
  10. 140.1MFY2026

Top buyers

  1. General Services Administration
  2. Department of Defense
  3. Department of Defense
  4. Department of Defense
  5. Department of Health and Human Services
  6. Department of Labor
  7. Department of Justice

Top recipients

  1. 326 awards
  2. 1 award
  3. 16,995 awards
  4. 2 awards
  5. 1 award
  6. 1 award
  7. 3 awards
  8. 1 award
  9. 2 awards
  10. 15 awards

Other boundaries

District lines change between plans; each plan keeps its own page.

Sources and method

Every figure on this page traces to these records.

  • Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
  • ZIP code (ZCTA) to congressional district crosswalk (U.S. Census Bureau)U.S. Census Bureau, 2020 relationship files (ZCTAs, tracts and congressional districts); shares computed by Analisa · release 2020 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Money and votes are shown side by side; neither explains the other.