What city is ZIP code 66536?

ZIP code 66536 is in St. Marys, KS (Pottawatomie County).

What county is ZIP code 66536 in?

ZIP code 66536 is mostly in Pottawatomie County, Kansas.

How many people live in ZIP code 66536?

About 4,204 people live in the 66536 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 66536

St. Marys, KS, Pottawatomie County

Population

4,204

Land area

65.4sq mi

People per sq mi

City

St. Marys

ZIP 66536 and nearby ZIP codes

Full map

ZIP 66536 at a glance

ZIP 66536 (St. Marys) is 78% denser than Kansas as a whole.
The median household income is $85,568, 15% above the Kansas median of $74,275.
A typical owner-occupied home is valued at $224,600 (3% above Kansas) and median rent is $887 a month.

Local data for ZIP 66536

Counts from official public data

Housing and community stats

ZIP 66536, American Community Survey 2020-2024

Full profile

Median household income

$85,568

Poverty rate

8.1%

Median home value

$224,600

Prices -2.2% in a year

Median rent

$887/mo

Homeownership

71.3%

Bachelor's or higher

25.2%

Median age

24.9

Average commute

16.6 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

109

ZIP Business Patterns 2023

Employees

1,918

$99.3M annual payroll

PPP loans

$9.1M

143 loans

Campaign donations

$6,739

0% D, 73% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 66536, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: wildfire

Storm events since 1996

765

Countywide, mostly hail

Flood insurance policies

0.8% of homes, county

July high / Jan low

90° / 18°F

34.7 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 66536, CDC PLACES estimates

All 40 measures

Obesity

36.4%

U.S. 33.3% +3.1 pts

Diabetes

10.7%

U.S. 12.1% -1.4 pts

Smoking

15.4%

U.S. 12.8% +2.6 pts

Uninsured (18-64)

9.7%

U.S. 11.1% -1.4 pts

Frequently asked questions

What city is ZIP code 66536?: ZIP code 66536 is in St. Marys, KS (Pottawatomie County).
What county is ZIP code 66536 in?: ZIP code 66536 is mostly in Pottawatomie County, Kansas.
How many people live in ZIP code 66536?: About 4,204 people live in the 66536 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.