Categories in Johnston, Iowa
Auto Parts StoreBrake ShopCar Detailing ServiceCar rentalCar repairCar Repair and MaintenanceCar WashGas StationMechanicNew car dealersOil Change ServiceTire ShopUsed car dealersCrop GrowerClothing storesDry CleanerWomen's clothingInternet Service ProviderMedia CompanyMobile phone storesTelevision StationAssisted Living FacilityAssociation or OrganizationChild Care AgencyChild care and day careChurchesCounselorDay Care CenterFamily CounselorFire StationGovernment OfficeMailing ServiceMilitary BaseNon-Profit OrganizationReligious OrganizationSocial OrganizationSocial Services OrganizationSocial WorkerState Government OfficeComputer Repair ServiceSoftware CompanySoftware ConsultantWeb Hosting CompanyArchitectsArchitecture FirmBathroom RemodelerBuilding Construction ContractorConcrete ContractorConstruction of buildingsConstruction of houses
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Industries
Business Distribution by Industry in Johnston, Iowa
| Industry Description | Number of Establishments | Average Age of Business |
|---|---|---|
| Real estate | 173 | 22 years |
| Health and medical | 163 | 26 years |
| Corporate management | 132 | 25 years |
| Construction of buildings | 116 | 31 years |
| Financial services | 115 | 35 years |
| Restaurants | 79 | 28 years |
| Finance other | 56 | 44 years |
| Lawyers legal | 55 | 21 years |
| Shopping | 49 | 28 years |
| Physicians and surgeons | 47 | 24 years |
| Dentists | 41 | 26 years |
| Social work | 40 | 32 years |
| Other construction | 40 | 28 years |
| Electronics stores | 39 | 20 years |
| Physiotherapy | 39 | — |
| Public administration | 36 | 34 years |
Johnston, Iowa Facts
| Area | 18.2 mi² |
| Population | 20,330 |
| Male Population | 9,944 (48.9%) |
| Female Population | 10,386 (51.1%) |
| Population change (1975 to 2020) | +31.0% |
| Population change (2000 to 2020) | +34.9% |
| Median Age | 36.7 years (Male: 35.6, Female: 37.8) |
| GDP per capita (PPP) | $90,387 (2022) |
| Area Codes | 515, 641 |
| Neighborhoods | Johnston, Green Meadows West, Prairie View, Johnston Acres, Hyperion |
| Local Time | |
| Timezone | Central Daylight Time |
| Lat & Lng | 41.67304, -93.69772 |
| Zip Codes | 50131 |
Map of Johnston, Iowa
Interactive Map
Johnston, Iowa Population
Years 1975 to 2030
| Data | 1975 | 1990 | 2000 | 2015 | 2020 | 2025* | 2030* |
|---|---|---|---|---|---|---|---|
| Population | 15,519 | 15,279 | 15,070 | 18,312 | 20,330 | 21,087 | 21,710 |
| Population Density | 851.8 / mi² | 838.6 / mi² | 827.1 / mi² | 1,005.1 / mi² | 1,115.9 / mi² | 1,157.4 / mi² | 1,191.6 / mi² |
* Projected
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up gridJohnston, Iowa Population change from 2000 to 2020
Increase of 34.9% from year 2000 to 2020
| Location | Change since 1975 | Change since 1990 | Change since 2000 |
|---|---|---|---|
| Johnston, Iowa | +31% | +33.1% | +34.9% |
| Iowa | — | — | — |
| United States | — | — | — |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Johnston, Iowa Median Age
Median Age: 36.7 years
| Location | Median Age | Median Age (Female) | Median Age (Male) |
|---|---|---|---|
| Johnston, Iowa | 36.7 yrs | 37.8 yrs | 35.6 yrs |
| Iowa | 38.1 yrs | 39.6 yrs | 36.7 yrs |
| United States | 37.4 yrs | 38.7 yrs | 36.1 yrs |
Sources: CIESIN (Center for International Earth Science Information Network)
Johnston, Iowa Population Density
Population Density: 1,116 / mi²
| Location | Population | Area | Density |
|---|---|---|---|
| Johnston, Iowa | 20,330 | 18.22 sq mi | 1,116 / mi² |
| Iowa | 3.1 million | 56,272.8 sq mi | 54.9 / mi² |
| United States | 321.6 million | 3,796,740.8 sq mi | 84.7 / mi² |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Johnston, Iowa Historical and Projected Population
Estimated Population from 1850 to 2100
Sources:
- JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
- CIESIN (Center for International Earth Science Information Network)
- [Link] Klein Goldewijk, K., Beusen, A., Doelman, J., and Stehfest, E.: Anthropogenic land use estimates for the Holocene – HYDE 3.2, Earth Syst. Sci. Data, 9, 927–953, https://doi.org/10.5194/essd-9-927-2017, 2017.
Neighborhoods in Johnston, Iowa
Percentage of businesses by neighborhood in Johnston, Iowa
Price Distribution
Business distribution by price for Johnston, Iowa
Human Development Index (HDI)
Statistic composite index of life expectancy, education, and per capita income.
Source: [Link] Kummu, M., Taka, M. &Guillaume, J. Gridded global datasets for Gross Domestic Product and Human Development Index over 1990–2015. Sci Data 5, 180004 (2018) doi:10.1038/sdata.2018.4
Johnston, Iowa Gross Domestic Product (GDP)
GDP per capita, PPP (constant 2017 international $)
| Data | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | 2022 |
|---|---|---|---|---|---|---|---|---|
| GDP per capita | $59,787 | $57,370 | $55,341 | $65,367 | $66,960 | $73,117 | $78,928 | $90,387 |
| Total GDP | $366.7M | $394M | $425M | $540.8M | $599.8M | $708.1M | $819.7M | $950.6M |
Source: [Link] Kummu, M., Kosonen, M. & Masoumzadeh Sayyar, S. Downscaled gridded global dataset for gross domestic product (GDP) per capita PPP over 1990–2022. Sci Data 12, 178 (2025) doi:10.1038/s41597-025-04487-x
Johnston, Iowa CO2 Emissions
Carbon Dioxide (CO2) Emissions Per Capita in Tonnes Per Year
| Location | CO2 Emissions | CO2 Emissions Per Capita | CO2 Emissions Intensity |
|---|---|---|---|
| Johnston, Iowa | 422,984 tn | 20.81 tn | 23,216.4 tons/mi² |
| Iowa | 60,512,078 tn | 19.6 tn | 1,075.3 tons/mi² |
| United States | 5,664,619,810 tn | 17.62 tn | 1,492 tons/mi² |
Sources: [Link] Moran, D., Kanemoto K; Jiborn, M., Wood, R., Többen, J., and Seto, K.C. (2018) Carbon footprints of 13,000 cities. Environmental Research Letters DOI: 10.1088/1748-9326/aac72a
Johnston, Iowa CO2 Emissions
| 2013 CO2 emissions (tonnes/year) | 422,984 tn |
| 2013 CO2 emissions (tonnes/year) per capita | 20.81 tn |
| 2013 CO2 emissions intensity (tonnes/mi²/year) | 23,216.4 tons/mi² |
Natural Hazards Risk
Relative risk out of 10
| Hazard | Risk Level |
|---|---|
| Drought | Low (2) |
| Flood | Medium (4) |
* Risk, particularly concerning flood or landslide, may not be for the entire area.
Sources:
- Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman. 2005. Natural Disaster Hotspots: A Global Risk Analysis. Washington, D.C.: World Bank. https://doi.org/10.1596/0-8213-5930-4.
- Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University, and International Research Institute for Climate and Society - IRI - Columbia University. 2005. Global Drought Hazard Frequency and Distribution. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4VX0DFT.
- Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University. 2005. Global Flood Hazard Frequency and Distribution. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4668B3D.
Johnston, Iowa
Johnston is a city in Polk County, Iowa, United States. The population was 17,278 in the 2010 census, an increase of almost 100% from the 8,649 population in the 2000 census. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area...
Johnston, Iowa Wikipedia Page
About Our Data
The data on this page is estimated using a number of publicly available tools and resources. It is provided without warranty, and could contain inaccuracies. Use at your own risk.