Postal Codes

50599 ZIP Code

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ZIP code 50599 covers Woolstock, Iowa, with a population of about 423 and a median household income of $95,000.

Population
4239 per square mile
Median age
41.93.2 points above the US average
Median household income
$95,0001.3× the Iowa median
Poverty rate
2.8%9.6 points below the US average
Typical home value
$175,508
Median rent
$78018% below the Iowa median
Degree or higher
20.5%14.5 points below the US average
Homeownership
88.7%23.7 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
7

Where 50599 is

Woolstock, Iowa — 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

Population423
Median age41.9
Family households54.4%
Born outside the US3.3%
Speaks a language other than English at home2.9%
White (non-Hispanic)94.3%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino2.8%
Veterans9.9%
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

Median household income$95,000
Income per person$56,327
Poverty rate2.8%
Households on SNAP or cash assistance10.3%

Household income distribution

Under $10k0.0%
$10–15k1.5%
$15–20k3.9%
$20–25k0.5%
$25–30k7.4%
$30–35k1.0%
$35–40k1.0%
$40–45k8.8%
$45–50k3.9%
$50–60k8.3%
$60–75k3.4%
$75–100k10.8%
$100–125k20.6%
$125–150k8.3%
$150–200k8.8%
$200k or more11.8%

Income as declared to the IRS

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

Tax returns filed180
Mean adjusted gross income$81,867
Returns declaring $200,000 or more0%
Returns, under $25k22.2%
Returns, $25k–$50k16.7%
Returns, $50k–$75k33.3%
Returns, $75k–$100k0.0%
Returns, $100k–$200k27.8%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$200,600
Median gross rent$780
Rent as a share of household income9%
Owner-occupied88.7%
Vacant homes4.7%
Median year built1965

What the homes are

Detached house87.4%
Attached house2.8%
2 to 4 units1.9%
Mobile home7.9%
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$175,508as of 2026-07
Typical home value, 1 yearup 3.6%
Typical home value since 2000
202220242026$175,508$155,581

$161,502 in 2022 to $175,508 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate11.2%
Bachelor's degree or higher20.5%
High school diploma or higher84.6%
Works from home4.8%
Drives to work alone85.5%
Takes public transport0%
Commutes 45 minutes or more13.7%
Health

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

Obesity39.2% 5.8 pts above the national average of 33.4%
Diagnosed diabetes13% 1 pts above the national average of 12%
Currently smokes15.7% 2.5 pts above the national average of 13.2%
High blood pressure38.3% 4.2 pts above the national average of 34.1%
Fair or poor general health19.4% 0.9 pts below the national average of 20.3%
No health insurance (18–64)6.7% 4.6 pts below the national average of 11.3%
Depression20.7% 1.2 pts below the national average of 21.9%
No leisure-time physical activity26.7% 1.3 pts above the national average of 25.4%
Arthritis31.8% 6.7 pts above the national average of 25.1%
Binge drinking18.6% 2.6 pts above the national average of 16%
Taking blood pressure medication81.7% 7 pts above the national average of 74.7%
Cancer (non-skin)11% 3.3 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease8.5% 2.3 pts above the national average of 6.2%
Routine check-up in past year79.8% 3.1 pts above the national average of 76.7%
Cholesterol screening86.6% 0.7 pts above the national average of 85.9%
Cognitive disability13.8% 1 pts below the national average of 14.8%
Colorectal screening69.5% 5.2 pts above the national average of 64.3%
COPD8.7% 2.1 pts above the national average of 6.6%
Visited a dentist65% 3.7 pts above the national average of 61.3%
Any disability31.4% 0.7 pts above the national average of 30.7%
Lacks emotional support22.6% 2.2 pts below the national average of 24.8%
Food insecurity11.6% 5.5 pts below the national average of 17.1%
Received food stamps10.1% 4.2 pts below the national average of 14.3%
Hearing disability9.6% 2.9 pts above the national average of 6.7%
High cholesterol38.9% 2.7 pts above the national average of 36.2%
Housing insecurity8.7% 5.1 pts below the national average of 13.8%
Independent living disability8.2% same as the national average of 8.4%
Lacks transport6.4% 2.8 pts below the national average of 9.2%
Loneliness30.8% 3.6 pts below the national average of 34.4%
Mammography use77.1% 1.2 pts above the national average of 75.9%
Poor mental health (14+ days)15.9% 0.9 pts below the national average of 16.8%
Mobility disability15.6% 1.6 pts above the national average of 14%
Poor physical health (14+ days)14.3% 0.8 pts above the national average of 13.5%
Self-care disability3.9% same as the national average of 4%
Utility shut-off threat6.1% 2.7 pts below the national average of 8.8%
Sleeps under 7 hours32% 4.4 pts below the national average of 36.4%
Stroke4.2% 0.8 pts above the national average of 3.4%
All natural teeth lost10.7% 2.3 pts below the national average of 13%
Vision disability4.7% 0.9 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments7
People employed28
Annual payroll$1,463,000
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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 78.9% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss76.5 out of 100
Community resilience67.2 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.

Drought99.4Relatively High at its worst in this ZIP code
Hail92.7Relatively High at its worst in this ZIP code
Winter weather90.7Relatively High at its worst in this ZIP code
Cold wave89.7Relatively High at its worst in this ZIP code
Strong wind89Very High at its worst in this ZIP code
Tornado79Very High at its worst in this ZIP code
Landslide78.5Relatively Low at its worst in this ZIP code
River flooding60.4Relatively High at its worst in this ZIP code
Wildfire59.7Relatively Low at its worst in this ZIP code
Ice storm58.6Relatively Moderate at its worst in this ZIP code
Lightning46.2Relatively Low at its worst in this ZIP code
Hurricane35.4Very Low at its worst in this ZIP code
Earthquake13.7Very Low at its worst in this ZIP code
Heat wave3.8Very Low at its worst in this ZIP code
Compared with Iowa 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 ZIPIowaUnited States
Median household income$95,000$73,147$78,538
Income per person$56,327$39,728$43,289
Poverty rate2.8%11%12.4%
Median home value$200,600$195,900$303,400
Median gross rent$780$949$1,348
Homeownership88.7%71.5%65%
Bachelor's degree or higher20.5%30.9%35%
Unemployment rate11.2%3.6%5.2%
Works from home4.8%10.4%13.5%
Born outside the US3.3%5.7%13.9%
Median age41.938.638.7
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 stationWEBSTER CITY, IA US13 km away
Rain in a year37 in
Snow in a year33 in

Average high and low by month

January26.2°F / 6.9°F0.87 in rain, 7.9 in snow
February30.8°F / 10.9°F1.34 in rain, 9.8 in snow
March44.1°F / 23.3°F2.05 in rain, 4.4 in snow
April58.9°F / 33.9°F3.72 in rain, 1 in snow
May70°F / 46.7°F5.27 in rain, 0.2 in snow
June79.5°F / 57.2°F5.76 in rain
July82.8°F / 60.8°F4.41 in rain
August80.5°F / 58°F4.75 in rain
September74.8°F / 48.9°F3.36 in rain
October61.9°F / 36.5°F2.65 in rain, 0.1 in snow
November45.4°F / 24.1°F1.7 in rain, 1.4 in snow
December31.7°F / 13.3°F1.36 in rain, 8.1 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.

Eagle Grove Community School District53.2% of this ZIP code's land area
Webster City Community School District30.4% of this ZIP code's land area
Clarion-Goldfield-Dows Community School District16.4% 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 vulnerability14more vulnerable than 14% of US census tracts
Socioeconomic status21more vulnerable than 21% of US census tracts
Household characteristics22more vulnerable than 22% of US census tracts
Racial and ethnic minority status5more vulnerable than 5% of US census tracts
Housing type and transport28more vulnerable than 28% of US census tracts
Walkability4.2 out of 20Least walkable
Nearby ZIP codes

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

50533 Eagle Grove, IA10.9 km away
50595 Webster City, IA13.2 km away
50034 Blairsburg, IA16.7 km away
50594 Vincent, IA17.5 km away
50525 Clarion, IA17.6 km away
50526 Clarion, IA18 km away
50542 Goldfield, IA20.9 km away
50591 Thor, IA21.2 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.

Wright County83.6% of this ZIP code's land area
Hamilton County16.4% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area48.68 sq mi
Water area0.03 sq mi
Population density9 people per sq mi
Latitude, longitude42.5844, -93.8216

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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