ZIP code 66521
Where is ZIP code 66521?
Onaga, Kansas
Pottawatomie County · Standard ZIP code
ZIP code 66521 belongs to Onaga, Kansas in Pottawatomie County. 66521 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 785. About 1,417 people live in the 66521 area, where the median household income is $61,250. The closest ZIP codes are 66432 (Havensville, 5 mi east), 66540 (Soldier, 11 mi east) and 66417 (Corning, 13.8 mi northeast).
| ZIP code | 66521 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Onaga |
| Also accepted | Duluth, Wheaton |
| State | Kansas (KS) |
| County | Pottawatomie County |
| Time zone | Central Time · now |
| Area code | 785 |
| Coordinates | 39.4889, -96.17 map |
| 3-digit prefix | 665 |
Population and income in 66521
| Population | 1,417 · higher than 59% of Kansas ZIP codes |
|---|---|
| People per square mile | 8 · lower than 56% of Kansas ZIP codes |
| Median age | 42.8 years · higher than 55% of Kansas ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $61,250 · lower than 64% of Kansas ZIP codes |
| Income per person | $32,566 |
| Below the poverty line | 13% |
| Bachelor’s degree or higher | 28% of adults 25+ |
| Median home value | $193,000 · higher than 74% of Kansas ZIP codes |
| Median rent | $982 a month |
| Housing units | 645 |
| Households | 542 (2.49 people on average) |
| Owners / renters | 65% / 35% |
| Land area | 177.63 sq mi (plus 0.47 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 66521. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 66521
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 66432 | Havensville, KS | 5 mi E | Standard |
| 66540 | Soldier, KS | 11 mi E | Standard |
| 66417 | Corning, KS | 13.8 mi NE | Standard |
| 66422 | Emmett, KS | 14 mi SE | Standard |
| 66549 | Westmoreland, KS | 15.2 mi W | Standard |
| 66544 | Vermillion, KS | 15.3 mi N | Standard |
| 66428 | Goff, KS | 16.6 mi NE | Standard |
| 66416 | Circleville, KS | 17.1 mi E | Standard |
| 66415 | Centralia, KS | 17.3 mi N | Standard |
| 66407 | Belvue, KS | 18.1 mi S | Standard |
| 66426 | Fostoria, KS | 18.3 mi W | PO Box only |
| 66418 | Delia, KS | 19.1 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 66521 or measure the distance to another ZIP code.
How to address mail to 66521
123 MAIN ST
ONAGA KS 66521
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts DULUTH and WHEATON as the city name for 66521. Adding the 4-digit ZIP+4 code (66521-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 66521?
- 66521 is a Onaga, Kansas ZIP code. Duluth and Wheaton are also accepted as the city name.
- What county is 66521 in?
- ZIP code 66521 is in Pottawatomie County, Kansas.
- What time zone is ZIP code 66521 in?
- 66521 is in the Central Time zone (America/Chicago).
- What area code is 66521?
- Phone numbers in ZIP code 66521 use area code 785.
- What is the population of ZIP code 66521?
- About 1,417 people live in ZIP code 66521, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 66521?
- The median household income in 66521 is $61,250 a year, lower than 64% of Kansas ZIP codes.
- What ZIP codes are near 66521?
- The nearest ZIP codes to 66521 are 66432 (Havensville, 5 miles), 66540 (Soldier, 11 miles), 66417 (Corning, 13.8 miles) and 66422 (Emmett, 14 miles).