Big Delta, AK Profile: Facts & Data


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Big Delta, Alaska - Basic Facts

The Big Delta Census Designated Place had a population of 577 as of July 1, 2020.

The primary coordinate point for Big Delta is located at latitude 64.1525 and longitude -145.8422 in Southeast Fairbanks (CA) Borough. The formal boundaries for the Big Delta Census Designated Place encompass a land area of 45.87 sq. miles and a water area of 7.46 sq. miles. Southeast Fairbanks (CA) Borough is in the Alaska time zone (GMT -9). The elevation is 997 feet.

The Big Delta Census Designated Place (GNIS ID: 2418791) 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.

The Big Delta Census Designated Place is located within the Southeast Fairbanks Census Subarea of Southeast Fairbanks (CA) Borough. Census subareas are statistical subdivisions of the county equivalents used in Alaska (boroughs, city and boroughs, municipalities, and census areas) and are the statistical equivalent of Micro Civil Divisions (MCDs) used in other states.

Alternate Unofficial Names for Big Delta: Big Delta Roadhouse, Grundler, McCarthy, McCarthy Telegraph Station, McCarty, McCarty Roadhouse, Tanana Ferry, Washburn.


Big Delta, AK Data & Demographics (As of July 1, 2020)


Total Population 577 (100%)
Population in Households 394 (68.3%)
Population in Families 328 (56.8%)
Population in Group Quarters1 183 (31.7%)
Population Density 12
Diversity Index2 34


Median Household Income $84,448
Average Household Income $103,280
% of Income for Mortgage4 9%
Per Capita Income $45,288
Wealth Index5 122


Total HU (Housing Units) 311 (100%)
Owner Occupied HU 176 (56.6%)
Renter Occupied HU 26 ( 8.4%)
Vacant Housing Units 109 (35.0%)
Median Home Value $172,917
Average Home Value $216,143
Housing Affordability Index3 310


Total Households 202
Average Household Size 1.95
Family Households 145
Average Family Size 2
  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.


2010-2020 2020-2025
Population -0.23% -0.6%
Households -0.19% -0.8%
Families -0.65% -0.84%
Median Household Income   0.61%
Per Capita Income   0.85%
Owner Occupied HU   -0.69%


Big Delta, AK - Peer Comparisons by Rank and Percentile

The table below compares Big Delta to the other 353 incorporated cities, towns and CDPs in Alaska by rank and percentile using July 1, 2020 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 # 107 70th
Population Density # 188 47th
Median Household Income # 22 94th
Housing Affordability Index # 325 92nd
Per Capita Income # 16 96th
Diversity Index # 191 46th

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

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