ONAGA, KS ZIP Code
| City | ONAGA |
| State | Kansas |
| ZIP Codes count | 1 (see all) |
| Post offices count | 1 (see all) |
| Total population | 808 (see all) |
ZIP Code in ONAGA, Kansas
66521
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of ONAGA, KS ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 66521 | STANDARD | 1,445 |
Post offices
ONAGA — Post Office™ 300 LUCIEN ST ONAGA, KS 66521-9998 |
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.
Address example
21135 DULUTH RD
ONAGA KS 66521-9414
ONAGA KS 66521-9414
22024 GILSEN CREEK RD
ONAGA KS 66521-9570
ONAGA KS 66521-9570
204 MARKET ST
ONAGA KS 66521-3757
ONAGA KS 66521-3757
21391 MCGERTY RD
ONAGA KS 66521-3758
ONAGA KS 66521-3758
21724 ROLLING PRAIRIE RD
ONAGA KS 66521-9449
ONAGA KS 66521-9449
21101 WALNUT ST
ONAGA KS 66521-9453
ONAGA KS 66521-9453
Map
Hover over the map to see the ZIP code
Census data for ONAGA, KS
Demographic and housing estimates in ONAGA, KS
| Total population | 808 |
| Male | 380 |
| Female | 428 |
| Total population | 808 |
| Under 5 years | 42 |
| 5 to 9 years | 68 |
| 10 to 14 years | 50 |
| 15 to 19 years | 37 |
| 20 to 24 years | 15 |
| 25 to 34 years | 105 |
| 35 to 44 years | 70 |
| 45 to 54 years | 77 |
| 55 to 59 years | 50 |
| 60 to 64 years | 33 |
| 65 to 74 years | 128 |
| 75 to 84 years | 71 |
| 85 years and over | 62 |
| Median age (years) | 47.2 |
| Under 18 years | 184 |
| 16 years and over | 645 |
| 18 years and over | 624 |
| 21 years and over | 605 |
| 62 years and over | 281 |
| 65 years and over | 261 |
| Total population | 808 |
| One race | 779 |
| White | 747 |
| Black or African American | 8 |
| American Indian and Alaska Native | 23 |
| Asian | 1 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 0 |
| Two or more races | 29 |
| Citizen, VOTING AGE 18 and over population | 624 |
| Male Citizen, VOTING AGE 18 and over population | 280 |
| Female Citizen, VOTING AGE 18 and over population | 344 |
Social characteristics in ONAGA, KS
| Total households | 323 |
| Family households (families) | 201 |
| Married-couple family | 143 |
| Male householder, no wife present, family | 30 |
| Female householder, no husband present, family | 28 |
| Nonfamily households | 122 |
| Average household size | 2.22 |
| Average family size | 2.83 |
Economic characteristics in ONAGA, KS
| Total households | 323 |
| Less than $10,000 | 35 |
| $10,000 to $14,999 | 6 |
| $15,000 to $24,999 | 41 |
| $25,000 to $34,999 | 39 |
| $35,000 to $49,999 | 44 |
| $50,000 to $74,999 | 69 |
| $75,000 to $99,999 | 40 |
| $100,000 to $149,999 | 25 |
| $150,000 to $199,999 | 15 |
| $200,000 or more | 9 |
| Median household income (dollars) | 49,125 |
Housing characteristics in ONAGA, KS
| Total housing units | 388 |
| Occupied housing units | 323 |
| Vacant housing units | 65 |
| Total housing units | 388 |
| 1-unit, detached | 300 |
| 1-unit, attached | 3 |
| 2 units | 29 |
| 3 or 4 units | 24 |
| 5 to 9 units | 0 |
| 10 to 19 units | 20 |
| 20 or more units | 6 |
| Mobile home | 6 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 388 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 0 |
| Built 2000 to 2009 | 17 |
| Built 1990 to 1999 | 26 |
| Built 1980 to 1989 | 20 |
| Built 1970 to 1979 | 58 |
| Built 1960 to 1969 | 20 |
| Built 1950 to 1959 | 30 |
| Built 1940 to 1949 | 31 |
| Built 1939 or earlier | 186 |
| Total housing units | 388 |
| 1 room | 16 |
| 2 rooms | 16 |
| 3 rooms | 37 |
| 4 rooms | 24 |
| 5 rooms | 104 |
| 6 rooms | 63 |
| 7 rooms | 43 |
| 8 rooms | 28 |
| 9 rooms or more | 57 |
| Median rooms | 5.5 |
| Total housing units | 388 |
| No bedroom | 16 |
| 1 bedroom | 61 |
| 2 bedrooms | 114 |
| 3 bedrooms | 112 |
| 4 bedrooms | 60 |
| 5 or more bedrooms | 25 |
| Occupied housing units | 323 |
| Owner-occupied | 196 |
| Renter-occupied | 127 |
| Average household size of owner-occupied unit | 2.43 |
| Average household size of renter-occupied unit | 1.91 |
| Occupied housing units | 323 |
| Moved in 2017 or later | 11 |
| Moved in 2015 to 2016 | 35 |
| Moved in 2010 to 2014 | 96 |
| Moved in 2000 to 2009 | 82 |
| Moved in 1990 to 1999 | 22 |
| Moved in 1989 and earlier | 77 |
| Owner-occupied units | 196 |
| Less than $50,000 | 64 |
| $50,000 to $99,999 | 77 |
| $100,000 to $149,999 | 23 |
| $150,000 to $199,999 | 21 |
| $200,000 to $299,999 | 3 |
| $300,000 to $499,999 | 3 |
| $500,000 to $999,999 | 5 |
| $1,000,000 or more | 0 |
| Median (dollars) | 67,300 |
| Owner-occupied units | 196 |
| Housing units with a mortgage | 89 |
| Housing units without a mortgage | 107 |
| Occupied units paying rent | 118 |
| Less than $500 | 39 |
| $500 to $999 | 65 |
| $1,000 to $1,499 | 0 |
| $1,500 to $1,999 | 0 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 14 |
| Median (dollars) | 579 |
| No rent paid | 9 |
Data is based on 2018 Census
ZIP Codes for other locations
State for ONAGA
Kansas ZIP CodesOther cities in Kansas