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Where am ILOCATED

Black Hawk County, Iowa

Black Hawk County, Iowa, has 131,532 residents (July 2025 estimate). Its county seat is Waterloo. It uses Central Time and covers 566 sq mi (1,465 km²) of land.

Des MoinesCedar RapidsDavenport
Black Hawk County in Iowa
WaterlooCedar FallsEvansdaleHudsonJesup
Black Hawk County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
131,532
Land area
566 sq mi (1,465 km²)
County seat or government
Waterloo
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$66,417 ± $1,805
Median home value
$188,900 ± $4,988
Median rent, with utilities
$989 ± $20
Homes lived in by their owners
66.2% ± 1.1 points
County type
County
Metro or micro area
Waterloo-Cedar Falls, IA metro areaCentral county
Water area
6.91 sq mi (17.9 km²)
State
Iowa
County code (FIPS)
19013
Coordinates (central point)
42.471132, -92.307600
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Black Hawk County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 5061343,867 people
  2. 5070130,232 people
  3. 5070220,882 people
  4. 5070317,952 people
  5. 507077,784 people
  6. 506484,269 people
  7. 506513,147 people
  8. 506433,027 people
  9. 506692,439 people
  10. 506702,270 people
  11. 506752,198 people
  12. 506292,082 people
All 18
  1. 506471,978 people
  2. 506261,468 people
  3. 50667899 people
  4. 50634761 people
  5. 50612369 people
  6. 50623153 people

18 ZIP Code areas overlap Black Hawk County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Black Hawk County, largest first

  1. Black Hawk Township3,105 people
  2. Poyner Township2,739 people
  3. Big Creek Township2,289 people
  4. Cedar Township1,497 people
  5. Mount Vernon Township1,492 people
  6. Lester Township1,337 people
  7. East Waterloo Township1,163 people
  8. Washington Township940 people
  9. Orange Township667 people
  10. Fox Township651 people
  11. Union Township549 people
  12. Cedar Falls Township491 people
All 17
  1. Barclay Township395 people
  2. Lincoln Township374 people
  3. Spring Creek Township325 people
  4. Eagle Township314 people
  5. Bennington Township307 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Iowa, by county

School districts in Black Hawk County, largest first

  1. Waterloo Community School District76,132 people
  2. Cedar Falls Community School District42,790 people
  3. Waverly-Shell Rock Community School District14,332 people
  4. Vinton-Shellsburg Community School District10,343 people
  5. Union Community School District5,982 people
  6. Jesup Community School District5,281 people
  7. Denver Community School District4,412 people
  8. Gladbrook-Reinbeck Community School District4,316 people
  9. Dike-New Hartford Community School District4,270 people
  10. Wapsie Valley Community School District3,748 people
  11. Hudson Community School District3,681 people
  12. Janesville Consolidated School District2,650 people
All 13
  1. Dunkerton Community School District2,377 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Waterloo, Iowa (city)67,008 people
  2. Cedar Falls, Iowa (city)40,888 people
  3. Evansdale, Iowa (city)4,518 people
  4. Hudson, Iowa (city)2,699 people
  5. Jesup, Iowa (city)2,561 people
  6. La Porte City, Iowa (city)2,071 people
  7. Elk Run Heights, Iowa (city)964 people
  8. Janesville, Iowa (city)917 people
  9. Raymond, Iowa (city)899 people
  10. Dunkerton, Iowa (city)821 people
  11. Gilbertville, Iowa (city)761 people
  12. Washburn, Iowa (CDP)714 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Bremer County, Iowa21 mi north
  2. Buchanan County, Iowa24 mi east
  3. Grundy County, Iowa25 mi west
  4. Benton County, Iowa29 mi southeast
  5. Tama County, Iowa30 mi southwest
  6. Butler County, Iowa30 mi northwest
  7. Fayette County, Iowa36 mi northeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.