PlainZIP

Onaga, KS · standard

ZIP Code 66521

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

1,532
3/sq mi
$61,250
Median income
$193,000
Median home value
27.6%
Bachelor's or higher

The verdict

Onaga pairs a below-median household income with below-median home values, in a rural, homeowner-dominated area.

31th pct
household income, US ZIPs
42th pct
home value, US ZIPs
3
people per sq mi
65%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 66521 against every reporting US ZIP.

ZIP code 66521 covers 478.8 square miles in Onaga, Pottawatomie County, Kansas (a standard USPS delivery area), with a modest 1,532 residents on file, a density of 3 people per square mile, in the Chicago time zone.

ZIP 66521 reports a modest median household income of $61,250 (15% below the Kansas average), while per-capita income is $32,566. The poverty rate stands at 13.4% and the unemployment rate at 1.7%. Housing costs here run $193,000 for a typical home value (19% above the state average), with rent averaging $982 a month; 65.3% of homes are owner-occupied.

Educational attainment sits below the national norm: 27.6% of adults hold a bachelor's degree or higher, the median age is 42.8, and the average commute is 19 minutes. Beyond these figures, 1 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Pottawatomie County, letting you compare 66521 to its immediate surroundings rather than a national baseline 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 66521

Top 5 sectors by establishment count in Onaga, KS

Which industries have the most business establishments in ZIP 66521.

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 66521, Onaga, 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

1,532

Population

478.8

Area (sq mi)

3

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 66521?

42.8

Median Age

48.6%

Male

51.4%

Female

2.0%

Foreign-Born

White 90.3%
African American 0.0%
Asian 2.0%
American Indian or Alaska Native 1.2%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.4%
Hispanic or Latino 2.8%

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?

$61,250

Median Household Income

-15% vs state

$32,566

Per Capita Income

13.4%

Poverty Rate

1.7%

Unemployment Rate

19.3 min

Mean Commute Time

How ZIP 66521 ranks nationally

Onaga, KS household income vs. every US ZIP code

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

$61,250 31st percentile higher than 31% 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%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $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 63.3%
Bachelor's Degree or Higher 27.6%

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

What does housing look like?

645

Total Housing Units

542

Occupied Units

103

Vacant Units

2.49

Avg Household Size

Occupancy Type

Owner 65.3%
Renter 34.7%

$193,000

Median Home Value

+19% vs state

$982

Median Rent

1957

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 35 business establishments in ZIP 66521, employing approximately 424 people with a combined annual payroll of $20,130,000.

35

Businesses

424

Employees

$20.1M

Annual Payroll

5

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 7 20.0%
Retail trade 6 17.1%
Other services (except public administration) 6 17.1%
Construction 3 8.6%
Finance and insurance 3 8.6%

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 66521 vs 66422 →

ZIP Code City Population Distance
66422 Emmett, KS 487 12.3 mi

More ZIP Codes in Pottawatomie County

66547 standard
Wamego, KS
Pop: 7,617
66536 standard
Saint Marys, KS
Pop: 3,922
66535 standard
Saint George, KS
Pop: 2,616
66549 standard
Westmoreland, KS
Pop: 1,646
66520 standard
Olsburg, KS
Pop: 577
66422 standard
Emmett, KS
Pop: 487

Related Areas

Pottawatomie County Onaga, KS Kansas

Frequently Asked Questions

What county is ZIP code 66521 in? ▼
ZIP code 66521 (Onaga) 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 66521? ▼
ZIP code 66521 in Onaga, KS has a population of 1,532 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 66521? ▼
The median household income in ZIP 66521 is $61,250, which is 20% below the national average of $76,288.
What is the average home value in ZIP 66521? ▼
The median home value in ZIP 66521 is $193,000, which is 31% below the national average of $278,155.
What is the demographic makeup of ZIP 66521? ▼
The largest racial group in ZIP 66521 is White at 90.3%. Hispanic or Latino residents make up 2.8% of the population.
How many businesses are in ZIP code 66521? ▼
ZIP code 66521 has 35 business establishments employing approximately 424 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 66521? ▼
The top industries by establishment count in ZIP 66521 are: Health care and social assistance (7), Retail trade (6), Other services (except public administration) (6). There are 5 industry sectors represented in total.
What is the education level in ZIP code 66521? ▼
In ZIP code 66521, 63.3% of residents aged 25+ have a high school diploma or higher, and 27.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 66521? ▼
The mean commute time for workers in ZIP code 66521 is 19.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 66521? ▼
In ZIP code 66521, approximately 65.3% of occupied housing units are owner-occupied and 34.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 66521? ▼
The poverty rate in ZIP code 66521 is 13.4% 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.