Maryland Census & Demographic Data - July 1, 2018


Maryland Census Data

The tables below provide updated data and demographic estimates for Maryland as of July 1, 2018. Our Maryland Census Data Comparison Tool allows you to compare and rank MD cities, towns, ZIP Codes and Counties / Independent Cities.

Maryland Data & Demographics (As of July 1, 2018)


Total Population 6,119,186
Population in Households 5,978,666
Population in Familes 4,839,510
Population in Group Qrtrs 140,520
Population Density2 630
Diversity Index3 68


Median Household Income $79,833
Average Household Income $105,317
Per Capita Income $39,534


Total Housing Units 2,508,235 (100%)
Owner Occupied HU 1,495,282 (59.6%)
Renter Occupied HU 771,199 (30.7%)
Vacant Housing Units 241,754 ( 9.6%)
Median Home Value $325,730
Average Home Value $397,584


Total Households 2,266,481
Average Household Size 2.64
Family Households 1,506,687
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.71% 0.68%
Households 0.61% 0.62%
Families 0.49% 0.55%
Median Household Income   2.94%
Per Capita Income   2.96%