PlainZIP

Saint Marys, KS · standard

ZIP Code 66536

Pottawatomie County, Kansas - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

3,922
26/sq mi
$85,568
Median income
$224,600
Median home value
25.2%
Bachelor's or higher

The verdict

Saint Marys pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 31%
household income, US ZIPs
Top 49%
home value, US ZIPs
26
people per sq mi
71%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 66536 against every reporting US ZIP.

ZIP code 66536 covers 152.6 square miles in Saint Marys, Pottawatomie County, Kansas (a standard USPS delivery area), with a modest 3,922 residents on file, a density of 26 people per square mile, in the Chicago time zone.

ZIP 66536 lands in the middle-income range, with a median household income of $85,568 (19% above the Kansas average), while per-capita income is $27,956. Local economic indicators show a 8.1% poverty rate alongside 4.8% unemployment. Median home value sits at $224,600 (39% above the state average), median rent at $887 a month, and owner-occupancy at 71.3%.

Educational attainment sits below the national norm: 25.2% of adults hold a bachelor's degree or higher, the median age is 24.9, and the average commute is -. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Pottawatomie County, so you can benchmark 66536 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 66536

Top 5 sectors by establishment count in Saint Marys, KS

Which industries have the most business establishments in ZIP 66536.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 66536, Saint Marys, KS · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

3,922

Population

152.6

Area (sq mi)

26

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 66536?

24.9

Median Age

51.8%

Male

48.2%

Female

3.2%

Foreign-Born

White 87.7%
African American 0.7%
Asian 1.6%
American Indian or Alaska Native 0.6%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.7%
Hispanic or Latino 7.2%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$85,568

Median Household Income

+19% vs state

$27,956

Per Capita Income

8.1%

Poverty Rate

4.8%

Unemployment Rate

How ZIP 66536 ranks nationally

Saint Marys, KS household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$85,568 Top 31% higher than 69% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 56.5%
Bachelor's Degree or Higher 25.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,215

Total Housing Units

1,155

Occupied Units

60

Vacant Units

3.49

Avg Household Size

Occupancy Type

Owner 71.3%
Renter 28.7%

$224,600

Median Home Value

+39% vs state

$887

Median Rent

1976

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-2.6%

YoY Change (2024)

252

HPI Index (2000 = 100)

+152%

Total Change Since 2000

Home values in ZIP 66536 have decreased 2.6% over the past year (2024). Since 2000, this ZIP has seen +152% cumulative appreciation.

Year Annual Change HPI Index
2020 -3.7% 184
2021 +11.2% 205
2022 +15.2% 236
2023 +10.0% 259
2024 -2.6% 252

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 109 business establishments in ZIP 66536, employing approximately 1,918 people with a combined annual payroll of $99,330,000.

109

Businesses

1,918

Employees

$99.3M

Annual Payroll

11

Industry Sectors

Industry Establishments % of Total
Construction 25 22.9%
Retail trade 21 19.3%
Other services (except public administration) 11 10.1%
Health care and social assistance 9 8.3%
Wholesale trade 7 6.4%
Manufacturing 6 5.5%
Finance and insurance 6 5.5%
Professional, scientific, and technical services 6 5.5%
Administrative and support and waste management and remediation services 5 4.6%
Real estate and rental and leasing 4 3.7%
Accommodation and food services 4 3.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 66536 vs 66422 →

ZIP 66536 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 66536 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 66536 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 66536 ranks the highest of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
66422 Emmett, KS 487 7.9 mi
66407 Belvue, KS 479 6.2 mi
66533 Rossville, KS 1,832 8.1 mi
66418 Delia, KS 707 8.9 mi

More ZIP Codes in Pottawatomie County

66547 standard
Wamego, KS
Pop: 7,617
66535 standard
Saint George, KS
Pop: 2,616
66549 standard
Westmoreland, KS
Pop: 1,646
66521 standard
Onaga, KS
Pop: 1,532
66520 standard
Olsburg, KS
Pop: 577
66422 standard
Emmett, KS
Pop: 487

Related Areas

Pottawatomie County Saint Marys, KS Kansas

Frequently Asked Questions

What county is ZIP code 66536 in? ▼
ZIP code 66536 (Saint Marys) is located in Pottawatomie County, Kansas. Pottawatomie County contains multiple ZIP codes, see the full list at /counties/pottawatomie-ks.
What is the population of ZIP code 66536? ▼
ZIP code 66536 in Saint Marys, KS has a population of 3,922 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 66536? ▼
The median household income in ZIP 66536 is $85,568, which is 12% above the national average of $76,288.
What is the average home value in ZIP 66536? ▼
The median home value in ZIP 66536 is $224,600, which is 19% below the national average of $278,155.
What is the demographic makeup of ZIP 66536? ▼
The largest racial group in ZIP 66536 is White at 87.7%. Hispanic or Latino residents make up 7.2% of the population.
How many businesses are in ZIP code 66536? ▼
ZIP code 66536 has 109 business establishments employing approximately 1,918 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 66536? ▼
The top industries by establishment count in ZIP 66536 are: Construction (25), Retail trade (21), Other services (except public administration) (11). There are 11 industry sectors represented in total.
How have home values changed in ZIP code 66536? ▼
According to the FHFA House Price Index, home values in ZIP 66536 decreased by 2.6% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 152%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 66536? ▼
In ZIP code 66536, 56.5% of residents aged 25+ have a high school diploma or higher, and 25.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 66536? ▼
In ZIP code 66536, approximately 71.3% of occupied housing units are owner-occupied and 28.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 66536? ▼
The poverty rate in ZIP code 66536 is 8.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.