Postal Codes

66536 ZIP Code

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ZIP code 66536 covers Saint Marys, Kansas, with a population of about 4,103 and a median household income of $78,641.

Population
4,10363 per square mile
Median age
25.413.3 points below the US average
Median household income
$78,6411.1× the Kansas median
Poverty rate
8.9%3.5 points below the US average
Typical home value
$290,063up 32.8% in five years
Median rent
$85417% below the Kansas median
Degree or higher
21.6%13.4 points below the US average
Homeownership
72.3%7.3 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
108

Where 66536 is

Saint Marys, Kansas — 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

Population4,103
Median age25.4
Family households80.6%
Born outside the US2.2%
Speaks a language other than English at home3.4%
White (non-Hispanic)82.3%
Black (non-Hispanic)0.6%
Asian (non-Hispanic)0.7%
Hispanic or Latino9%
Veterans8.1%
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

Median household income$78,641
Income per person$27,746
Poverty rate8.9%
Households on SNAP or cash assistance4.9%

Household income distribution

Under $10k3.5%
$10–15k2.0%
$15–20k0.7%
$20–25k2.6%
$25–30k1.8%
$30–35k3.6%
$35–40k2.8%
$40–45k3.6%
$45–50k4.9%
$50–60k12.5%
$60–75k9.6%
$75–100k17.0%
$100–125k12.1%
$125–150k6.7%
$150–200k9.3%
$200k or more7.2%

Income as declared to the IRS

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

Tax returns filed1,690
Mean adjusted gross income$74,431
Returns declaring $200,000 or more4.1%
Returns, under $25k32.5%
Returns, $25k–$50k19.5%
Returns, $50k–$75k16.0%
Returns, $75k–$100k13.0%
Returns, $100k–$200k14.8%
Returns, $200k or more4.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$211,400
Median gross rent$854
Rent as a share of household income20.6%
Owner-occupied72.3%
Vacant homes5.5%
Median year built1976

What the homes are

Detached house78.2%
Attached house3.7%
2 to 4 units8%
5 to 19 units4.8%
Mobile home5.3%
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$290,063as of 2026-07
Typical home value, 1 yearup 6.8%
Typical home value, 5 yearsup 32.8%
Typical home value, 10 yearsup 87%
Typical home value since 2000
200920172026$290,063$136,200

$138,244 in 2009 to $290,063 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.7%
Bachelor's degree or higher21.6%
High school diploma or higher96.1%
Works from home6.9%
Drives to work alone73.4%
Takes public transport0%
Commutes 45 minutes or more6.5%
Health

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

Obesity36.4% 3 pts above the national average of 33.4%
Diagnosed diabetes10.7% 1.3 pts below the national average of 12%
Currently smokes15.4% 2.2 pts above the national average of 13.2%
High blood pressure34% same as the national average of 34.1%
Fair or poor general health17.9% 2.4 pts below the national average of 20.3%
No health insurance (18–64)9.7% 1.6 pts below the national average of 11.3%
Depression21.2% 0.7 pts below the national average of 21.9%
No leisure-time physical activity28% 2.6 pts above the national average of 25.4%
Arthritis25.5% same as the national average of 25.1%
Binge drinking16.9% 0.9 pts above the national average of 16%
Taking blood pressure medication77.4% 2.7 pts above the national average of 74.7%
Cancer (non-skin)8.2% 0.5 pts above the national average of 7.7%
Current asthma10.3% same as the national average of 10.4%
Coronary heart disease6.7% 0.5 pts above the national average of 6.2%
Routine check-up in past year74.5% 2.2 pts below the national average of 76.7%
Cholesterol screening81.2% 4.7 pts below the national average of 85.9%
Cognitive disability16.2% 1.4 pts above the national average of 14.8%
Colorectal screening63% 1.3 pts below the national average of 64.3%
COPD7.3% 0.7 pts above the national average of 6.6%
Visited a dentist66.1% 4.8 pts above the national average of 61.3%
Any disability32.7% 2 pts above the national average of 30.7%
Lacks emotional support21.6% 3.2 pts below the national average of 24.8%
Food insecurity12.8% 4.3 pts below the national average of 17.1%
Received food stamps7.2% 7.1 pts below the national average of 14.3%
Hearing disability8.1% 1.4 pts above the national average of 6.7%
High cholesterol35.3% 0.9 pts below the national average of 36.2%
Housing insecurity10.8% 3 pts below the national average of 13.8%
Independent living disability8.5% same as the national average of 8.4%
Lacks transport7.4% 1.8 pts below the national average of 9.2%
Loneliness32.9% 1.5 pts below the national average of 34.4%
Mammography use75.6% same as the national average of 75.9%
Poor mental health (14+ days)17.8% 1 pts above the national average of 16.8%
Mobility disability13.8% same as the national average of 14%
Poor physical health (14+ days)12.9% 0.6 pts below the national average of 13.5%
Self-care disability3.5% 0.5 pts below the national average of 4%
Utility shut-off threat7.8% 1 pts below the national average of 8.8%
Sleeps under 7 hours36% same as the national average of 36.4%
Stroke3.3% same as the national average of 3.4%
All natural teeth lost12.8% same as the national average of 13%
Vision disability4.7% 0.9 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments108
People employed1,677
Annual payroll$87,061,000
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 80.5% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 4 census tracts this ZIP code covers
Expected annual loss81.2 out of 100
Community resilience74.7 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.

Ice storm98.5Very High at its worst in this ZIP code
Winter weather98.4Very High at its worst in this ZIP code
Wildfire96.2Relatively High at its worst in this ZIP code
Tornado93.5Very High at its worst in this ZIP code
Strong wind93.2Very High at its worst in this ZIP code
Landslide92.7Relatively Low at its worst in this ZIP code
Hail91.7Relatively High at its worst in this ZIP code
Lightning90.1Relatively High at its worst in this ZIP code
Drought89.2Relatively Moderate at its worst in this ZIP code
Heat wave87.6Relatively High at its worst in this ZIP code
Cold wave76.8Relatively High at its worst in this ZIP code
River flooding76.2Relatively High at its worst in this ZIP code
Earthquake28.6Very Low at its worst in this ZIP code
Compared with Kansas 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 ZIPKansasUnited States
Median household income$78,641$72,639$78,538
Income per person$27,746$39,638$43,289
Poverty rate8.9%11.5%12.4%
Median home value$211,400$203,400$303,400
Median gross rent$854$1,029$1,348
Homeownership72.3%66.9%65%
Bachelor's degree or higher21.6%35.2%35%
Unemployment rate3.7%3.9%5.2%
Works from home6.9%10.7%13.5%
Born outside the US2.2%7.2%13.9%
Median age25.437.238.7
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 stationWAMEGO 4 W, KS US26.1 km away
Rain in a year35 in
Snow in a year17 in

Average high and low by month

January39.3°F / 17.7°F0.69 in rain, 4.8 in snow
February45°F / 21.2°F1.16 in rain, 5 in snow
March56°F / 30.9°F2.09 in rain, 1.8 in snow
April66.6°F / 41.5°F3.5 in rain, 0.2 in snow
May75.8°F / 53.3°F5.11 in rain
June84.7°F / 63.4°F5.19 in rain
July89.8°F / 68.2°F4.66 in rain
August88.5°F / 65.3°F4.11 in rain
September81°F / 56.3°F2.86 in rain
October69.1°F / 43.3°F2.41 in rain, 0.3 in snow
November54.8°F / 31.2°F1.67 in rain, 0.8 in snow
December42.7°F / 21.7°F1.28 in rain, 4 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%.

Kaw Valley Unified School District 321100% 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 status22more vulnerable than 22% of US census tracts
Household characteristics25more vulnerable than 25% of US census tracts
Racial and ethnic minority status24more vulnerable than 24% of US census tracts
Housing type and transport81more vulnerable than 81% of US census tracts
Walkability4.9 out of 20Least walkable
Nearby ZIP codes

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

66407 Belvue, KS10.7 km away
66533 Rossville, KS11.4 km away
66422 Emmett, KS11.8 km away
66418 Delia, KS11.9 km away
66526 Paxico, KS16.4 km away
66507 Maple Hill, KS17.3 km away
66539 Silver Lake, KS20.8 km away
66547 Wamego, KS21.3 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.

Pottawatomie County74.2% of this ZIP code's land area
Shawnee County10.6% of this ZIP code's land area
Jackson County8.5% of this ZIP code's land area
Wabaunsee County6.7% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area65.42 sq mi
Water area1.8 sq mi
Population density63 people per sq mi
Latitude, longitude39.1987, -96.0683

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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