Postal Codes

74027 ZIP Code

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ZIP code 74027 covers Delaware, Oklahoma, with a population of about 848 and a median household income of $42,344.

Population
8489 per square mile
Median age
50.111.4 points above the US average
Median household income
$42,34433% below the Oklahoma median
Poverty rate
18.9%6.5 points above the US average
Typical home value
$228,751up 37.1% in five years
Degree or higher
12.6%22.4 points below the US average
Homeownership
74.3%9.3 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
6

Where 74027 is

Delaware, Oklahoma — 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

Population848
Median age50.1
Family households69.6%
Born outside the US0.7%
Speaks a language other than English at home0%
White (non-Hispanic)63.6%
Black (non-Hispanic)1.1%
Asian (non-Hispanic)0%
Hispanic or Latino0.6%
Veterans3.5%
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$42,344
Income per person$24,300
Poverty rate18.9%
Households on SNAP or cash assistance16.1%

Household income distribution

Under $10k2.6%
$10–15k6.4%
$15–20k6.7%
$20–25k7.3%
$25–30k7.3%
$30–35k5.0%
$35–40k5.8%
$40–45k10.5%
$45–50k7.0%
$50–60k5.3%
$60–75k10.5%
$75–100k7.6%
$100–125k7.6%
$125–150k2.6%
$150–200k7.6%
$200k or more0.0%

Income as declared to the IRS

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

Tax returns filed370
Mean adjusted gross income$57,941
Returns declaring $200,000 or more0%
Returns, under $25k32.4%
Returns, $25k–$50k27.0%
Returns, $50k–$75k13.5%
Returns, $75k–$100k10.8%
Returns, $100k–$200k16.2%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$126,600
Owner-occupied74.3%
Vacant homes14.9%
Median year built1980

What the homes are

Detached house65.9%
Attached house0.5%
2 to 4 units0.7%
Mobile home32.8%
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$228,751as of 2026-07
Typical home value, 1 yearup 14.2%
Typical home value, 5 yearsup 37.1%
Typical home value, 10 yearsup 99.4%
Typical home value since 2000
201120182026$228,751$96,112

$96,112 in 2011 to $228,751 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.2%
Bachelor's degree or higher12.6%
High school diploma or higher91.2%
Works from home11%
Drives to work alone70.4%
Takes public transport0%
Commutes 45 minutes or more23.7%
Health

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

Obesity40.9% 7.5 pts above the national average of 33.4%
Diagnosed diabetes17% 5 pts above the national average of 12%
Currently smokes21.1% 7.9 pts above the national average of 13.2%
High blood pressure47.1% 13 pts above the national average of 34.1%
Fair or poor general health26% 5.7 pts above the national average of 20.3%
No health insurance (18–64)9.9% 1.4 pts below the national average of 11.3%
Depression25.2% 3.3 pts above the national average of 21.9%
No leisure-time physical activity36.3% 10.9 pts above the national average of 25.4%
Arthritis36.4% 11.3 pts above the national average of 25.1%
Binge drinking12.8% 3.2 pts below the national average of 16%
Taking blood pressure medication80.3% 5.6 pts above the national average of 74.7%
Cancer (non-skin)10.1% 2.4 pts above the national average of 7.7%
Current asthma12.4% 2 pts above the national average of 10.4%
Coronary heart disease10.6% 4.4 pts above the national average of 6.2%
Routine check-up in past year80.5% 3.8 pts above the national average of 76.7%
Cholesterol screening86% same as the national average of 85.9%
Cognitive disability18.8% 4 pts above the national average of 14.8%
Colorectal screening57.8% 6.5 pts below the national average of 64.3%
COPD11.9% 5.3 pts above the national average of 6.6%
Visited a dentist53.9% 7.4 pts below the national average of 61.3%
Any disability45.1% 14.4 pts above the national average of 30.7%
Lacks emotional support25.3% 0.5 pts above the national average of 24.8%
Food insecurity19.8% 2.7 pts above the national average of 17.1%
Received food stamps17.5% 3.2 pts above the national average of 14.3%
Hearing disability12.9% 6.2 pts above the national average of 6.7%
High cholesterol42.9% 6.7 pts above the national average of 36.2%
Housing insecurity14% same as the national average of 13.8%
Independent living disability11.8% 3.4 pts above the national average of 8.4%
Lacks transport10.7% 1.5 pts above the national average of 9.2%
Loneliness31.9% 2.5 pts below the national average of 34.4%
Mammography use64.9% 11 pts below the national average of 75.9%
Poor mental health (14+ days)18.3% 1.5 pts above the national average of 16.8%
Mobility disability23.5% 9.5 pts above the national average of 14%
Poor physical health (14+ days)18.1% 4.6 pts above the national average of 13.5%
Self-care disability6% 2 pts above the national average of 4%
Utility shut-off threat11.2% 2.4 pts above the national average of 8.8%
Sleeps under 7 hours39.6% 3.2 pts above the national average of 36.4%
Stroke5.5% 2.1 pts above the national average of 3.4%
All natural teeth lost18.4% 5.4 pts above the national average of 13%
Vision disability7.9% 2.3 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments6
People employed11
Annual payroll$423,000
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 76.4% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss55 out of 100
Community resilience18.7 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.

Strong wind99.5Very High at its worst in this ZIP code
Ice storm98.6Very High at its worst in this ZIP code
Drought96.5Relatively Moderate at its worst in this ZIP code
Cold wave90.9Relatively High at its worst in this ZIP code
Tornado86.8Relatively High at its worst in this ZIP code
Wildfire85.8Relatively Moderate at its worst in this ZIP code
Landslide84.9Relatively Low at its worst in this ZIP code
Heat wave82.1Relatively Moderate at its worst in this ZIP code
Winter weather71.7Relatively Moderate at its worst in this ZIP code
Hail64.5Relatively Low at its worst in this ZIP code
River flooding62.7Relatively Moderate at its worst in this ZIP code
Lightning62.4Relatively Moderate at its worst in this ZIP code
Hurricane41.9Very Low at its worst in this ZIP code
Earthquake29.3Very Low at its worst in this ZIP code
Compared with Oklahoma 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 ZIPOklahomaUnited States
Median household income$42,344$63,603$78,538
Income per person$24,300$34,859$43,289
Poverty rate18.9%15.3%12.4%
Median home value$126,600$185,900$303,400
Median gross rent$980$1,348
Homeownership74.3%65.8%65%
Bachelor's degree or higher12.6%27.8%35%
Unemployment rate4.2%4.9%5.2%
Works from home11%8.5%13.5%
Born outside the US0.7%6.3%13.9%
Median age50.136.938.7
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 stationNOWATA, OK US10.1 km away

Average high and low by month

January47.6°F / 26.4°F
February53.4°F / 29.8°F
March64°F / 38.4°F
April72°F / 47.9°F
May79°F / 57.6°F
June87.5°F / 67.4°F
July92°F / 71.1°F
August92°F / 69.5°F
September83.5°F / 60.5°F
October73.3°F / 49.3°F
November61.4°F / 38.1°F
December50.7°F / 28.9°F
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 supermarket78% of this ZIP code's area
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 2 school districts, so the address decides which one, not the ZIP code.

Oklahoma Union Public Schools98.8% of this ZIP code's land area
Nowata Public Schools1.2% 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 vulnerability39more vulnerable than 39% of US census tracts
Socioeconomic status55more vulnerable than 55% of US census tracts
Household characteristics26more vulnerable than 26% of US census tracts
Racial and ethnic minority status51more vulnerable than 51% of US census tracts
Housing type and transport28more vulnerable than 28% of US census tracts
Walkability2.5 out of 20Least walkable
Nearby ZIP codes

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

74048 Nowata, OK9.7 km away
74042 Lenapah, OK11.1 km away
74072 S Coffeyville, OK22.6 km away
74083 Wann, OK22.7 km away
74004 Bartlesville, OK25.8 km away
74080 Talala, OK27.8 km away
74006 Bartlesville, OK27.8 km away
74029 Dewey, OK28.3 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.

Nowata County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area97.58 sq mi
Water area0.27 sq mi
Population density9 people per sq mi
Latitude, longitude36.7804, -95.6181

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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