Potomac, MD Profile: Facts, Map & Data


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Potomac, Maryland - Basic Facts

The Potomac Census Designated Place had a population of 47,203 as of July 1, 2017.

The primary coordinate point for Potomac is located at latitude 39.0133 and longitude -77.1936 in Montgomery County. The formal boundaries for the Potomac Census Designated Place (see map below) encompass a land area of 25.13 sq. miles and a water area of 1.45 sq. miles. Montgomery County is in the Eastern time zone (GMT -5). The elevation is 361 feet.

The Potomac Census Designated Place (GNIS ID: 2389701) 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 Potomac Census Designated Place is located within District 10, a minor civil division (MCD) of Montgomery County.

Beneath the boundary map are tables with Potomac population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Potomac: Offutts Cross Road, Offutt's Crossroads, Section Eight.

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Potomac Census Designated Place, MD Boundary Map

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Boundary Maps: District 10 | Montgomery County | Maryland Counties / Independent Cities

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Potomac, MD Data & Demographics (As of July 1, 2017)


Total Population 47,203
Daytime Population: Workers 17,931
Daytime Population: Residents 24,505
Total Daytime Population (TDP) 42,436
Ratio TDP/Total Population1 0.90
Population in Households 46,738
Population in Familes 42,136
Population in Group Qrtrs 465
Population Density2 1,878
Diversity Index3 54


Median Household Income $187,315
Average Household Income $249,347
Per Capita Income $88,485


Total Housing Units 17,183 (100%)
Owner Occupied HU 14,557 (84.7%)
Renter Occupied HU 2,242 (13.0%)
Vacant Housing Units 383 ( 2.2%)
Median Home Value $902,887
Average Home Value $905,211


Total Households 16,800
Average Household Size 2.78
Family Households 13,577
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 0.67% 0.74%
Households 0.59% 0.66%
Families 0.53% 0.62%
Median Household Income   0.57%
Per Capita Income   1.29%

Potomac, MD - Peer Comparisons by Rank and Percentile

The table below compares Potomac to the other 518 incorporated cities, towns and CDPs in Maryland by rank and percentile using July 1, 2017 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 # 20 96th
Population Density # 204 61st
Diversity Index # 141 73rd
Median Household Income # 11 98th
Per Capita Income # 10 98th

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

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