ZIP Code 66521
standardSource:
Onaga · Pottawatomie County · Kansas
- Population
- 1,532
- Median income
- $61,250
- Median home value
- $193,000
- Bachelor's or higher
- 27.6%
- Land area
- 478.8 sq mi
3/sq mi
▼ 20% vs US
higher than 31% of US ZIPs
▼ 31% vs US
higher than 42% of US ZIPs
Median age 42.8
Chicago
ZIP code 66521 in Onaga, Kansas has a population of 1,532. The median household income is $61,250, which is 20% below the national average. Median home value is $193,000, 31% below the US average. 27.6% of residents hold a bachelor's degree or higher.
ZIP code 66521 is classified by USPS as a standard delivery area and covers roughly 478.8 square miles in Onaga, Pottawatomie County, Kansas. The area is home to 1,532 residents, producing a population density of 3 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 66521 against Kansas and the nation.
On the economic side, the median household income for ZIP 66521 sits at $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%. On housing, the median home value is $193,000 (19% above the state average) with median rent at $982 per month, and 65.3% of occupied units are owner-occupied, a direct signal of whether 66521 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 27.6% of adults hold a bachelor's degree or higher, the median age is 42.8, and the average commute is 19 minutes. We also surface 1 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Pottawatomie County, so you can benchmark 66521 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 66521
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 66521.
- Health care and social assistance
Health care and social assistance
7 establishments
- Retail trade
Retail trade
6 establishments
- Other services (except public administration)
Other services (except public administration)
6 establishments
- Construction
Construction
3 establishments
- Finance and insurance
Finance and insurance
3 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
Who lives in ZIP 66521?
42.8
Median Age
48.6%
Male
51.4%
Female
2.0%
Foreign-Born
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
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
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
$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
Related Areas
Frequently Asked Questions
What county is ZIP code 66521 in? ▼
What is the population of ZIP code 66521? ▼
What is the median household income in ZIP 66521? ▼
What is the average home value in ZIP 66521? ▼
What is the demographic makeup of ZIP 66521? ▼
How many businesses are in ZIP code 66521? ▼
What are the main industries in ZIP code 66521? ▼
What is the education level in ZIP code 66521? ▼
What is the average commute time in ZIP 66521? ▼
What percentage of residents own vs. rent in ZIP 66521? ▼
What is the poverty rate in ZIP code 66521? ▼
ZIP Code Research Guides
Official Data Resources for Onaga, KS
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.