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Castalia, NC Profile: Facts & Data

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Castalia, North Carolina - Basic Facts

The Town of Castalia had a population of 257 as of July 1, 2025.

The primary coordinate point for Castalia is located at latitude 36.0818 and longitude -78.0575 in Nash County. The formal boundaries for the Town of Castalia encompass a land area of 0.75 sq. miles and a water area of 0 sq. miles. Nash County is in the Eastern time zone (GMT -5).

The Town of Castalia has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Town of Castalia is located within Township of Castalia, a minor civil division (MCD) of Nash County.


Jump to... (On This Page!)
  1. Castalia 2025 Demographic Data
  2. Growth Rates for Castalia (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. North Carolina Research Tools (Easy Tools & Current Data)
  3. North Carolina Data Comparison Tool - 2025 Demographics
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Castalia, NC Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 257 (100%)
Population in Households 257 (100.0%)
Population in Families 198 (77.0%)
Population in Group Quarters1 0
Population Density 340
Diversity Index2 63
 
 

INCOME

Median Household Income $47,117
Average Household Income $56,324
% of Income for Mortgage4 100%
Per Capita Income $23,450
Wealth Index5 38
Socioeconomic Status Index6 Low (44.4)
 

HOUSING

Total HU (Housing Units) 130 (100%)
Owner Occupied HU 81 (62.3%)
Renter Occupied HU 26 (20.0%)
Vacant Housing Units 23 (17.7%)
Median Home Value $1,125,000
Average Home Value $1,169,907
Housing Affordability Index3 15
 

HOUSEHOLDS

Total Households 107
Average Household Size 2.40
Family Households 75
Average Family Size 3.00
NOTES
  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.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population -0.51% -0.47%
Households -0.18% 0.19%
Families   -3.43%
Median Household Income   0.04%
Per Capita Income   2.47%
Owner Occupied HU   0.25%

Castalia, NC - Peer Comparisons by Rank and Percentile

The table below compares Castalia to the other 776 incorporated cities, towns and CDPs in North Carolina by rank and percentile using July 1, 2025 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 # 684 12th
Population Density # 552 29th
Median Household Income # 605 22nd
Housing Affordability Index # 49 6th
Per Capita Income # 684 12th
Diversity Index # 241 69th

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

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