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zipcodes.pro — CITY/OR/ANNEX

Annex ZIP codes, Oregon

No ZIP code is named for Annex, OR; addresses there use a neighbouring town's name. The ZIP code covering it is 97914. Its area codes are 541 and 458.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
340
Area codes
541, 458
State
Oregon

NANPA lists no telephone rate centre for Annex itself, so these are the area codes of the nearest one, Ontario (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Annex in numbers

About 340 people live in Annex, in 92 households. The median household income is $67,000 a year, 19% below the Oregon median of $83,011 (US: $80,734). The median owner-occupied home is valued at $225,000 (53% below the Oregon median), and median gross rent is $894 a month. The median age is 27.8; 8.9% of adults 25 and over hold a bachelor's degree or higher (36.8% across Oregon); the average commute takes 29 minutes.

Population340Annex340
Households92Annex92
Median age27.8Annex27.8Oregon40.4US 38.9
Median household income$67,000Annex$67,000Oregon$83,011US $80,734
Median home value$225,000Annex$225,000Oregon$477,600US $332,700
Median gross rent$894Annex$894Oregon$1,525US $1,413
Bachelor's degree or higher8.9%Annex8.9%Oregon36.8%US 35.7%
Mean commute28.8 minAnnex28.8 minOregon23.0 minUS 26.4 min
Population density138 / sq miAnnex138 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Annex CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Annex

These ZIP codes cover part of Annex but are addressed as somewhere else.

ZIP codes overlapping Annex
ZIP City Type Population Median income Median home
97914 Ontario , OR Standard 19,713 $50,857 $249,200

Map of Annex ZIP codes

97914

The ZIP codes of Annex, OR, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Annex

The nearest larger towns are Weiser, ID (5,935 people, 1.8 mi), Payette, ID (8,536 people, 11 mi) and Ontario (11,842 people, 14 mi).

Towns near Annex
TownPopulationDistance
Weiser, ID 5,935 1.8 mi
Payette, ID 8,536 11.1 mi
Ontario 11,842 14.5 mi
Fruitland, ID 6,663 15.4 mi
Nyssa 3,240 24.6 mi

More nearby: every ZIP code in Malheur County · Oregon ZIP codes

Cite this page

zipcodes.pro. “Annex, OR ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/or/annex

Underlying data is public domain or openly licensed — sources, vintages and licences.