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Johnston, Iowa

City in Polk County, Iowa · ZIP 50109, 50111, 50131

  • Polk County
  • Census data · ACS 2019-2023
  • 8 public schools
Join JohnstonAsk JohnstonBusinessesPeople
  • 25,022 (2024 estimate)Population
  • 9,552Households
  • $103,430Median household income
  • $346,200Median home value
  • 8Public schools
  • 3ZIP codes

About Johnston

This page shows only what has been published about Johnston: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020+178.2%
010k20k30k2000: 8,64920002010: 17,27820102020: 24,06420208,64924,064
Population of Johnston at each census
CensusPopulation
20008,649
201017,278
202024,064

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 19, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 19, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 19, retrieved November 14, 2026.

Household income in Johnston
Under $50k22.1%
$50k to $100k26.4%
$100k to $150k15.5%
$150k to $200k13.4%
$200k and over22.6%

Median household income $103,430 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 19, retrieved November 14, 2026.

Housing tenure in Johnston
Owner occupied
6,905 units
Renter occupied
2,647 units
Vacancy rate
3.2%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 19, retrieved November 14, 2026.

Johnston compared with its county and state
Johnston compared with its county and state, American Community Survey 2019-2023
MeasureJohnstonPolk CountyIowa
Population24,196497,4413,195,937
Median household income$103,430$81,621$73,147
Median age38.436.238.6
Median home value$346,200$248,400$195,900
Bachelor’s degree or higher57.9%39.5%30.9%
Foreign-born residents8.9%10.0%5.7%
Owner-occupied homes72.3%67.1%71.5%
Mean commute to work19.3 minutes19.9 minutes19.8 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 19, retrieved November 14, 2026.

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Schools

Public schools in Johnston8
Public schools in Johnston, NCES directory 2023–2024
SchoolTypeGradesDistrict
Beaver Creek Elementary SchoolPublicK–5Johnston Comm School District
Henry A Wallace Elementary SchoolPublicPre-K–5Johnston Comm School District
Horizon ElementaryPublicK–5Johnston Comm School District
Lawson Elementary SchoolPublicK–5Johnston Comm School District
Timber Ridge ElementaryPublicK–5Johnston Comm School District
Summit Middle SchoolPublic6–7Johnston Comm School District
Johnston Middle SchoolPublic8–9Johnston Comm School District
Johnston Senior High SchoolPublic10–12Johnston Comm School District

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Frequently asked about JohnstonPromoted from questions people asked

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Nearby towns

Other towns in Polk County

All towns in Polk County