ZIP codes / Kansas

66522.

Oneida / Kansas

State / postal region
Kansas ↗
County association
Nemaha ↗
Approximate coordinates
39.8639, -95.9392

Last successful directory check:

Record last changed

Record last changed:

A successful check does not mean every record changed. Unchanged records keep their previous modification date. Times use UTC.

Read the guide ↗
ZIPSFIELD / Interactive US postal explorer

66522 · Oneida

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First digit0123456789916 3-digit prefixes

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Dots summarize approximate ZIP locations grouped by state and three-digit prefix; they are not official delivery boundaries. Colors follow the first digit. Not every number in a displayed range is assigned. Alaska and island insets are relocated and use different scales.

Locations use available coordinates, not delivery boundaries. The simplified world outline may omit small islands; postal associations do not imply administrative ownership.

Current ZIP · Nearby ZIPs — Approximate postal locations, not ZIP or delivery boundaries.

Associated-area population — not ZIP population

City and county context, not this ZIP’s population. Do not add these figures.

City

Oneida city ↗

Census population count
61
Reference year
2020

Population data last successfully checked:

Definitions and update details

Census reference date: April 1, 2020. This is a historical count, not a current annual estimate.

These figures describe the named Census place and county, not this ZIP code. Their areas can overlap; do not add them together or use them as a ZIP population estimate.

Population data last changed:

A successful check does not mean every record changed. Unchanged records keep their previous modification date. Times use UTC.

Read the guide ↗
County association

Nemaha County ↗

Estimated population
10,054
Reference year
2025

Population data last successfully checked:

Definitions and update details

Reference date: July 1, 2025.

These figures describe the named Census place and county, not this ZIP code. Their areas can overlap; do not add them together or use them as a ZIP population estimate.

Population data last changed:

A successful check does not mean every record changed. Unchanged records keep their previous modification date. Times use UTC.

Read the guide ↗
Explore the atlas

Nearby ZIP codes

ZIP distance ↗

Places around this postal point, ordered by straight-line distance.

Postal place associations

Good to know

Location and boundaries

Which city uses ZIP 66522?

The main postal place listed for 66522 is Oneida, Kansas. A postal place name is not necessarily an incorporated city. Other recorded associations are listed above.

Which county is ZIP 66522 associated with?

Recorded county-level associations for 66522: Nemaha (KS). Postal and county boundaries do not necessarily coincide; use the full address to establish a specific jurisdiction.

Which state or postal region uses 66522?

The primary record associates 66522 with Kansas (KS). Postal region codes also cover territories, military mail and some independent countries; they do not all represent US states.

Can one ZIP code have several place names?

Yes. This directory records 1 distinct postal place names for 66522. These are recorded associations, not a certification that every name is accepted for mailing; verify the complete address before sending.

Is a ZIP code a city boundary?

ZIP codes organize mail delivery, not administrative boundaries. A code can have several city or county associations. Coordinates are approximate; verify delivery addresses with your carrier.

Does ZIP 66522 determine my school attendance zone?

No. A postal ZIP, a school district and a school attendance zone are different geographies. A school using the same mailing ZIP does not establish enrollment eligibility. Check the complete residential address with the district’s official locator.

Population, income and housing

What population figure is available for ZIP 66522?

No verified population figure for a matching ZCTA is published here. Associated city or county totals cannot replace it. Missing data does not mean zero residents, and some postal codes have no matching ZCTA.

Why do websites show different population figures for 66522?

Compare the geography, reference year and method first. A Census count, an ACS five-year estimate and a city or county total are different products. A newer website check date does not make an older statistical year current.

What is the median household income for ZIP 66522?

This page does not yet publish a verified ACS income estimate for the matching ZCTA. City or county income is not a substitute. When available, the value will identify its survey period and dollar year; missing income is not zero.

Are households and housing units the same count?

No. Households correspond to occupied housing units, while total housing units also include vacant units. Neither figure is a count of postal addresses or people. Compare the same geography and statistical year.

Do housing statistics for 66522 show current property prices?

No. Survey-based median home value and median gross rent are historical statistics for defined housing groups, not current listings, sale prices or quotes. This page does not claim housing values that have not been imported and verified.

Mailing and address checks

What is the difference between 66522 and ZIP+4?

66522 is the five-digit code. ZIP+4 adds four digits for a more specific postal segment. The extra digits cannot be inferred from the city or five-digit code alone; use USPS lookup with the full address.

Should leading zeroes in ZIP codes be kept?

Yes. Store and copy ZIP codes as five-character text, including any leading zeroes. Use 66522 exactly as displayed. Spreadsheet number formatting can otherwise remove zeroes and change the code.

Does finding a ZIP validate my full address?

No. This is a postal-location directory, not address-level delivery validation. Check the street number, street, unit, city and ZIP with USPS or the chosen carrier before shipping.

Can I check USPS, UPS or FedEx availability here?

A ZIP listing does not establish carrier coverage, fees or delivery speed. Use the carrier’s official tools with the full address, shipment details and date. Our help page links to their reference pages.

Is 66522 a standard, PO Box, unique or military ZIP?

These are different postal classifications. This directory does not yet certify the classification of 66522; it cannot be inferred from the city name, population or map point. Use official address tools before deciding how to ship.

Maps, distances and updates

Which ZIP codes are near 66522?

Nearby entries with available coordinates include 66538 (Seneca), 66408 (Bern), 66534 (Sabetha). The list uses approximate postal locations and may omit entries without coordinates; it is not a list of shared delivery boundaries.

Are the distances driving distances?

No. Distances are straight-line estimates between approximate postal coordinates, not street addresses. They do not include roads, traffic, ferries or delivery routes and cannot predict travel time.

How current is the information for 66522?

Last successful directory check: 2026-11-10. A completed check does not mean every record changed. Expand the record-change details for its actual modification date; population reference years and checks are separate. This is not real-time delivery validation.

Can I determine the local time from ZIP 66522 alone?

A ZIP or state name alone is not a reliable address-level time-zone check. Boundaries and daylight-saving rules matter. No verified time-zone field is published here yet; do not treat an approximate map point as a live clock.

A practical guide to US ZIP codes ↗

ZIP codes organize mail delivery, not administrative boundaries. A code can have several city or county associations. Coordinates are approximate; verify delivery addresses with your carrier. Verify with USPS ↗ Read the guide ↗

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