Postal Codes

57536 ZIP Code

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ZIP code 57536 covers Harrold, South Dakota, with a population of about 278.

Population
2781 per square mile
Median age
43.34.6 points above the US average
Poverty rate
5.8%6.6 points below the US average
Typical home value
$410,492
Median rent
$62232% below the South Dakota median
Degree or higher
28.9%6.1 points below the US average
Homeownership
60.2%4.8 points below the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
7

Where 57536 is

Harrold, South Dakota — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population278
Median age43.3
Family households68%
Born outside the US0%
Speaks a language other than English at home0.8%
White (non-Hispanic)84.9%
Black (non-Hispanic)0.4%
Asian (non-Hispanic)0%
Hispanic or Latino2.5%
Veterans4.1%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Income per person$44,208
Poverty rate5.8%
Households on SNAP or cash assistance8.7%

Household income distribution

Under $10k6.8%
$10–15k2.9%
$15–20k0.0%
$20–25k5.8%
$25–30k9.7%
$30–35k3.9%
$35–40k9.7%
$40–45k1.0%
$45–50k5.8%
$50–60k3.9%
$60–75k5.8%
$75–100k2.9%
$100–125k4.9%
$125–150k16.5%
$150–200k9.7%
$200k or more10.7%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed230
Mean adjusted gross income$68,074
Returns declaring $200,000 or more0%
Returns, under $25k30.4%
Returns, $25k–$50k26.1%
Returns, $50k–$75k21.7%
Returns, $75k–$100k0.0%
Returns, $100k–$200k21.7%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median gross rent$622
Owner-occupied60.2%
Vacant homes37.2%
Median year built1959

What the homes are

Detached house80.5%
2 to 4 units1.8%
5 to 19 units4.3%
Mobile home13.4%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$410,492as of 2026-07
Typical home value, 1 yearup 3.5%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0%
Bachelor's degree or higher28.9%
High school diploma or higher93.7%
Works from home27%
Drives to work alone64.5%
Takes public transport0%
Commutes 45 minutes or more26.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity33.6% same as the national average of 33.4%
Diagnosed diabetes12.5% 0.5 pts above the national average of 12%
Currently smokes13.8% 0.6 pts above the national average of 13.2%
High blood pressure34.8% 0.7 pts above the national average of 34.1%
Fair or poor general health16.2% 4.1 pts below the national average of 20.3%
No health insurance (18–64)7.4% 3.9 pts below the national average of 11.3%
Depression18.7% 3.2 pts below the national average of 21.9%
No leisure-time physical activity22.3% 3.1 pts below the national average of 25.4%
Arthritis26.8% 1.7 pts above the national average of 25.1%
Binge drinking17.8% 1.8 pts above the national average of 16%
Taking blood pressure medication78.4% 3.7 pts above the national average of 74.7%
Cancer (non-skin)10.5% 2.8 pts above the national average of 7.7%
Current asthma10.1% same as the national average of 10.4%
Coronary heart disease7.8% 1.6 pts above the national average of 6.2%
Routine check-up in past year77.5% 0.8 pts above the national average of 76.7%
Cholesterol screening87.1% 1.2 pts above the national average of 85.9%
Cognitive disability12.1% 2.7 pts below the national average of 14.8%
Colorectal screening66.1% 1.8 pts above the national average of 64.3%
COPD6.2% same as the national average of 6.6%
Visited a dentist70.3% 9 pts above the national average of 61.3%
Any disability30.1% 0.6 pts below the national average of 30.7%
Hearing disability9.9% 3.2 pts above the national average of 6.7%
High cholesterol34.8% 1.4 pts below the national average of 36.2%
Independent living disability7% 1.4 pts below the national average of 8.4%
Mammography use75.8% same as the national average of 75.9%
Poor mental health (14+ days)13.8% 3 pts below the national average of 16.8%
Mobility disability12.9% 1.1 pts below the national average of 14%
Poor physical health (14+ days)12.2% 1.3 pts below the national average of 13.5%
Self-care disability3.2% 0.8 pts below the national average of 4%
Sleeps under 7 hours28.9% 7.5 pts below the national average of 36.4%
Stroke3.8% same as the national average of 3.4%
All natural teeth lost8.2% 4.8 pts below the national average of 13%
Vision disability4.5% 1.1 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments7
People employed58
Annual payroll$3,365,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 87.2% of US census tracts
FEMA ratingRelatively High
Expected annual loss92.3 out of 100
Community resilience73.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Winter weather98Very High at its worst in this ZIP code
Wildfire96.9Relatively High at its worst in this ZIP code
Drought95.6Relatively Moderate at its worst in this ZIP code
River flooding94.3Very High at its worst in this ZIP code
Cold wave93Very High at its worst in this ZIP code
Ice storm89.6Relatively Moderate at its worst in this ZIP code
Hail89.4Relatively High at its worst in this ZIP code
Strong wind83.9Relatively High at its worst in this ZIP code
Landslide76.5Very Low at its worst in this ZIP code
Tornado67.5Relatively Moderate at its worst in this ZIP code
Lightning53.3Relatively Moderate at its worst in this ZIP code
Heat wave37.7Relatively Low at its worst in this ZIP code
Earthquake20.7Very Low at its worst in this ZIP code
Compared with South Dakota and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPSouth DakotaUnited States
Median household income$72,421$78,538
Income per person$44,208$38,880$43,289
Poverty rate5.8%12%12.4%
Median home value$236,800$303,400
Median gross rent$622$912$1,348
Homeownership60.2%68.6%65%
Bachelor's degree or higher28.9%31.1%35%
Unemployment rate0%3%5.2%
Works from home27%9.3%13.5%
Born outside the US0%3.9%13.9%
Median age43.337.738.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationHARROLD 12 SSW, SD US18.4 km away
Rain in a year19 in
Snow in a year40 in

Average high and low by month

January27.1°F / 3.3°F0.49 in rain, 4.8 in snow
February32.3°F / 7.5°F0.44 in rain, 7.4 in snow
March44.4°F / 18.6°F0.82 in rain, 5.4 in snow
April57.6°F / 28.7°F1.93 in rain, 7 in snow
May68.9°F / 41.1°F2.73 in rain
June79.2°F / 52.6°F3.3 in rain
July86.9°F / 58.3°F2.68 in rain
August85.5°F / 55.9°F1.93 in rain
September77.5°F / 45.6°F1.8 in rain
October61°F / 30.9°F1.44 in rain, 0.6 in snow
November44.4°F / 17.9°F0.54 in rain, 6.8 in snow
December31°F / 7.2°F0.54 in rain, 8 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Highmore-Harrold School District 34-260.8% of this ZIP code's land area
Agar-Blunt-Onida School District 58-333% of this ZIP code's land area
Pierre School District 32-26.1% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability19more vulnerable than 19% of US census tracts
Socioeconomic status12more vulnerable than 12% of US census tracts
Household characteristics29more vulnerable than 29% of US census tracts
Racial and ethnic minority status32more vulnerable than 32% of US census tracts
Housing type and transport40more vulnerable than 40% of US census tracts
Walkability5.3 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

57540 Holabird, SD11.4 km away
57522 Blunt, SD16.6 km away
57345 Highmore, SD22.5 km away
57564 Onida, SD35.4 km away
57346 Stephan, SD37.9 km away
57371 Ree Heights, SD40.6 km away
57520 Agar, SD44.1 km away
57548 Lower Brule, SD48.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Hughes County71.3% of this ZIP code's land area
Sully County28.7% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area411.86 sq mi
Water area23.13 sq mi
Population density1 people per sq mi
Latitude, longitude44.5215, -99.7382

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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