Oak Nebraska ZIP Codes

Oak holds a single ZIP code.

Every ZIP code in Oak

The complete list of Oak, Nebraska ZIP codes with the county each falls in.
ZIP code	County
68964	Nuckolls County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Oak codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Oak. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Oak ZIP code begins 689. Those first three digits identify the sectional center facility that processes mail for this part of Nebraska. Statewide that range covers 57 ZIP codes, so Oak accounts for 2% of it.

Every Nebraska ZIP prefix and the region it covers →

Area codes covering Oak

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Oak occupies.

Oak Nebraska area codes in full →

Where Oak's ZIP codes sit

Each point is one Oak ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Oak

The closest places to Oak with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Ruskin Nebraska ZIP codes	6.8 mi	1 ZIP code
Davenport Nebraska ZIP codes	7.1 mi	1 ZIP code
Nelson Nebraska ZIP codes	9.1 mi	1 ZIP code
Edgar Nebraska ZIP codes	9.7 mi	1 ZIP code
Ong Nebraska ZIP codes	12 mi	1 ZIP code
Deshler Nebraska ZIP codes	12 mi	1 ZIP code
Carleton Nebraska ZIP codes	12 mi	1 ZIP code
Deweese Nebraska ZIP codes	15 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.