Williston, MD Profile: Facts & Data


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Williston, Maryland - Basic Facts

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The Williston CDP(1) had a population of 161 as of July 1, 2021. Williston ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Maryland. See peer rankings below.

The primary coordinate point for Williston is located at latitude 38.8312 and longitude -75.851 in Caroline County. The formal boundaries for the Williston Census Designated Place encompass a land area of 0.26 sq. miles and a water area of 0 sq. miles. Caroline County is in the Eastern time zone (GMT -5). The elevation is 26 feet.

The Williston 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.

The Williston Census Designated Place is located within District 3, Denton, a minor civil division (MCD) of Caroline County.

Alternate Unofficial Names for Williston: Potter Town, Potters Landing.

  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. Williston 2021 Demographic Data
  2. Growth Rates for Williston (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Maryland Research Tools (Easy Tools & Current Data)
  3. Maryland Data Comparison Tool - 2021 Demographics

Williston, MD Data & Demographics (As of July 1, 2021)


Total Population 161 (100%)
Population in Households 160 (99.4%)
Population in Families 138 (85.7%)
Population in Group Quarters1 1 ( 0.6%)
Population Density 613
Diversity Index2 16


Median Household Income $82,751
Average Household Income $110,141
% of Income for Mortgage4 13%
Per Capita Income $42,177
Wealth Index5 159


Total HU (Housing Units) 70 (100%)
Owner Occupied HU 56 (80.0%)
Renter Occupied HU 9 (12.9%)
Vacant Housing Units 5 ( 7.1%)
Median Home Value $261,842
Average Home Value $275,000
Housing Affordability Index3 208


Total Households 65
Average Household Size 2.46
Family Households 49
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 0.34% 0.25%
Households 0.28% 0.31%
Families 0.18% 0.0%
Median Household Income   1.8%
Per Capita Income   2.26%
Owner Occupied HU   0.35%

Williston, MD - Peer Comparisons by Rank and Percentile

The table below compares Williston to the other 518 incorporated cities, towns and CDPs in Maryland 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 # 455 12th
Population Density # 358 31st
Median Household Income # 241 54th
Housing Affordability Index # 479 92nd
Per Capita Income # 205 61st
Diversity Index # 431 17th

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

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