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Annex, OR
Census-designated place in Malheur County, Oregon.
Population
340
Land area
2.5sq mi
People per sq mi
138
ZIP codes
0
Annex and its ZIP codes
Annex at a glance
- Annex is about 3.1 times as dense as Oregon as a whole.
Local data for Annex, OR
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Malheur County. PPP loans are for Annex.
Unemployment rate
3.6%
Sep 2026, -0.8 pts in a year
Average annual pay
$51,735
13,510 jobs, 2025
Income per person
$42,974
BEA, 2024
Federal spending
$172M
FY 2026, $5,443 per person
Environment and hazard risk
Annex, OR, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: wildfire
Storm events since 1996
156
Countywide, mostly heavy snow
Flood insurance policies
62
0.5% of homes, county
July high / Jan low
95° / 23°F
13.4 inches of rain a year
Health statistics
Share of adults in Annex, OR, CDC PLACES estimates
Obesity
41.1%
U.S. 33.3% +7.8 pts
Diabetes
15.5%
U.S. 12.1% +3.4 pts
Smoking
17.0%
U.S. 12.8% +4.2 pts
Uninsured (18-64)
12.8%
U.S. 11.1% +1.7 pts
Cities near Annex
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Weiser, IDCity | 2.3 mi | 3 |
| Payette, IDCity | 11 mi | 4.1 |
| OntarioCity | 14 mi | 6 |
| Fruitland, IDCity | 15 mi | 2.7 |
| HuntingtonCity | 16 mi | 0.7 |
| New Plymouth, IDCity | 20 mi | 0.7 |
| Midvale, IDCity | 20 mi | 2.6 |
| ValeCity | 21 mi | 1.2 |
| NyssaCity | 24 mi | 1.5 |
| BroganCensus-designated place | 26 mi | 2.9 |
| Cambridge, IDCity | 28 mi | 0.5 |
| Letha, IDCensus-designated place | 29 mi | 0.5 |
Frequently asked questions
- What county is Annex, OR in?
- Annex is in Malheur County, Oregon.
- What is the population of Annex, OR?
- About 340 people live in Annex, based on American Community Survey 5-year estimates.
- What cities are near Annex?
- Nearby places include Weiser, ID (2.3 mi), Payette, ID (11 mi), Ontario (14 mi), Fruitland, ID (15 mi), Huntington (16 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023