Annex, OR Profile: Facts & Data


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Annex, Oregon - Basic Facts

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The Annex CDP(1) had a population of 231 as of July 1, 2021. Annex ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Oregon. See peer rankings below.

The primary coordinate point for Annex is located at latitude 44.2402 and longitude -116.9843 in Malheur County. The formal boundaries for the Annex Census Designated Place encompass a land area of 2.46 sq. miles and a water area of 0 sq. miles. Malheur County is in the Mountain time zone (GMT -7). The elevation is 2,103 feet.

The Annex Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Oregon is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Annex Census Designated Place is located within Dead Ox Flat Division of Malheur County.

  1. A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Jump to... (On This Page!)
  1. Annex 2021 Demographic Data
  2. Growth Rates for Annex (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Oregon Research Tools (Easy Tools & Current Data)
  3. Oregon Data Comparison Tool - 2021 Demographics

Annex, OR Data & Demographics (As of July 1, 2021)


Total Population 231 (100%)
Population in Households 231 (100.0%)
Population in Families 197 (85.3%)
Population in Group Quarters1 0
Population Density 94
Diversity Index2 45


Median Household Income $57,351
Average Household Income $86,180
% of Income for Mortgage4 19%
Per Capita Income $35,205
Wealth Index5 108


Total HU (Housing Units) 109 (100%)
Owner Occupied HU 61 (56.0%)
Renter Occupied HU 32 (29.4%)
Vacant Housing Units 16 (14.7%)
Median Home Value $264,286
Average Home Value $281,452
Housing Affordability Index3 137


Total Households 93
Average Household Size 2.48
Family Households 69
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population -0.15% -0.17%
Households 0.0% -0.22%
Families 0.67% -0.29%
Median Household Income   2.53%
Per Capita Income   2.74%
Owner Occupied HU   0.0%

Annex, OR - Peer Comparisons by Rank and Percentile

The table below compares Annex to the other 378 incorporated cities, towns and CDPs in Oregon by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 312 18th
Population Density # 350 8th
Median Household Income # 181 52nd
Housing Affordability Index # 307 81st
Per Capita Income # 92 76th
Diversity Index # 100 74th

Additional comparisons and rankings can be made with a VERY EASY TO USE Oregon Census Data Comparison Tool.

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