66521 ZIP Code, Onaga, KS
66521 is a ZIP code in Onaga, Kansas — mostly in Pottawatomie County (92% of its land), with smaller parts in Nemaha County. It covers 178 square miles of land. The closest ZIP codes are 66432, 66549 and 66422. 1,417 people live here in 542 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (65% own). Median household income is $61,250, below the Kansas median of $74,275.
Quick facts
- Mailing city: Onaga, KS
- County: Pottawatomie County
- Land area: 178 sq mi
- Population: 1,417
- Median household income: $61,250
Key figures
| Measure | Value |
|---|---|
| Residents | 1,417 |
| Households | 542 |
| Median household income | $61,250 |
| Income per person | $32,566 |
| Median age | 42.8 |
| Homeowners | 65.3% |
| Median home value | $193,000 |
| Median rent | $982 |
| Bachelor's degree or higher | 27.6% |
| Average commute (minutes) | 19.3 |
| Households with kids under 18 | 32.5% |
| Moved in the past year | 12.4% |
| Below the poverty line | 13.4% |
| Broadband internet | 80.4% |
| Speak a non-English language at home | 2.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 9.2% |
| $10–15K | 4.2% |
| $15–25K | 6.5% |
| $25–35K | 9.8% |
| $35–50K | 14.2% |
| $50–75K | 10.3% |
| $75–100K | 15.1% |
| $100–150K | 21.6% |
| $150–200K | 5.2% |
| $200K+ | 3.9% |
Age
| % of all residents | Value |
|---|---|
| <10 | 13.3% |
| 10–19 | 11.3% |
| 20–24 | 4.2% |
| 25–34 | 14.5% |
| 35–44 | 9.6% |
| 45–54 | 8.0% |
| 55–64 | 13.2% |
| 65–74 | 11.8% |
| 75+ | 14.1% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 26.1% |
| Owned outright | 28.9% |
| Rented | 29.1% |
| Vacant | 15.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 83.9% |
| Townhome | 1.9% |
| 2–4 units | 3.4% |
| 5–19 units | 2.8% |
| 20+ units | 2.6% |
| Mobile / other | 5.4% |
Businesses in 66521
35 business establishments with 424 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 7
- Retail Trade: 6
- Other Services (except Public Administration): 6
- Construction: 3
- Finance and Insurance: 3
EDDM carrier routes
See every USPS carrier route in 66521 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 66432 — Havensville city, KS (8.2 mi)
- 66549 — Westmoreland city, KS (11.5 mi)
- 66422 — Emmett city, KS (12.2 mi)
- 66540 — Soldier city, KS (13.9 mi)
- 66544 — Vermillion city, KS (15.3 mi)
- 66415 — Centralia city, KS (15.9 mi)
- 66417 — Corning city, KS (16.4 mi)
- 66407 — Belvue city, KS (16.9 mi)
Areas that include 66521
- Onaga, KS ZIP codes — 1 ZIP code
- Wheaton, KS ZIP codes — 1 ZIP code
- Pottawatomie County ZIP codes — 11 ZIP codes
- Kansas ZIP code data
Where it ranks
- No. 5 of 8: highest share of households with children in Pottawatomie County
- No. 2 of 8: highest share of residents who moved in during the past year in Pottawatomie County
- No. 3 of 8: highest median age in Pottawatomie County
Mail every home in 66521
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 66521, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 66521 in?
- 66521 is a Onaga, KS mailing address. None of its land lies inside a Census-defined city or community.
- What county is 66521 in?
- 66521 is mostly in Pottawatomie County (92% of its land), with smaller parts in Nemaha County.
- What is the population of 66521?
- About 1,417 people (±246), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,521.
- What is the median household income in 66521?
- $61,250 (±$21,033), compared with $74,275 for Kansas as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 66521?
- EDDM2GO's stored route library does not include 66521 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 66521?
- The closest, measured center to center: 66432 (8.2 mi, Havensville), 66549 (11.5 mi, Westmoreland), 66422 (12.2 mi, Emmett), 66540 (13.9 mi, Soldier), 66544 (15.3 mi, Vermillion) and 66415 (15.9 mi, Centralia).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.