Ellicott City, MD Profile: Facts & Data


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Ellicott City, Maryland - Basic Facts

The Ellicott City Census Designated Place had a population of 76,683 as of July 1, 2020. Ellicott City ranks in the upper 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 Ellicott City is located at latitude 39.2673 and longitude -76.7983 in Howard County. The formal boundaries for the Ellicott City Census Designated Place encompass a land area of 29.95 sq. miles and a water area of 0.12 sq. miles. Howard County is in the Eastern time zone (GMT -5). The elevation is 154 feet.

The Ellicott City Census Designated Place (GNIS ID: 2389035) 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 Ellicott City Census Designated Place is located within District 2, Ellicott City, a minor civil division (MCD) of Howard County.

Alternate Unofficial Names for Ellicott City: Ellicott, Ellicott Mills, Ellicotts Lower Mills, Ellicotts Mills.


Ellicott City, MD Data & Demographics (As of July 1, 2020)


Total Population 76,683 (100%)
Population in Households 76,457 (99.7%)
Population in Families 67,277 (87.7%)
Population in Group Quarters1 226 ( 0.3%)
Population Density 2,559
Diversity Index2 63


Median Household Income $128,698
Average Household Income $171,137
% of Income for Mortgage4 18%
Per Capita Income $60,884
Wealth Index5 250


Total HU (Housing Units) 28,067 (100%)
Owner Occupied HU 20,225 (72.1%)
Renter Occupied HU 6,995 (24.9%)
Vacant Housing Units 846 ( 3.0%)
Median Home Value $540,559
Average Home Value $553,268
Housing Affordability Index3 127


Total Households 27,221
Average Household Size 2.81
Family Households 20,548
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.


2010-2020 2020-2025
Population 1.5% 1.49%
Households 1.35% 1.39%
Families 1.22% 1.33%
Median Household Income   1.49%
Per Capita Income   1.52%
Owner Occupied HU   1.57%


Ellicott City, MD - Peer Comparisons by Rank and Percentile

The table below compares Ellicott City to the other 518 incorporated cities, towns and CDPs in Maryland 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 # 6 99th
Population Density # 152 71st
Median Household Income # 53 90th
Housing Affordability Index # 116 22nd
Per Capita Income # 49 91st
Diversity Index # 97 81st

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

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