US location post office
ZIP Code 66521
- Zip Code: 66521
- Type: Standard
- Official USPS city name: Onaga
- Official USPS State Code: KS
- Official State Name: Kansas
- ZCTA: TRUE
- Population: 1596.0
- Density: 3.4
- Primary Official County Code: 20149
- Primary Official County Name: Pottawatomie
- Official County Name: Pottawatomie| Nemaha
- Official County Code: 20149| 20131
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Chicago (06:03 AM Friday, May 17 2024-05-17 (GMT -0500))
- Geo Point: 39.47984, -96.21953
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