Maryland population

State · Official geographic code 24

6,265,347

· Annual resident population estimate

U.S. Census Bureau · Population Estimates Program · Vintage 2025

+20,033 residents (+0.32%) since July 1, 2024.

Maryland had an estimated 6,265,347 residents on July 1, 2025, the 19th most populous of the 50 states and 1.83% of the U.S. total. Its population grew 0.32% between July 2024 and July 2025, compared with +0.88% for the South region and +0.52% for the United States.

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Population change, 2020–2025
+86,960July 1 to July 1 · +1.41%
Land-area density, 2025
645.2People per square mile · 2025 land area
Population rank, 2025
19 of 5050 states; DC listed separately

Maryland population history

Open historical explorer

The six July 1 estimates in the table belong to one consistent Vintage 2025 series. The Census Bureau revises earlier years when it releases a new vintage; a figure from an older publication may differ from the value below.

Maryland population, 2010–2025: 2010–2020 intercensal estimates (2020 boundaries) and Vintage 2025 estimates (2025 boundaries) 6.3M6.0M5.7M 2010201520202025

Vintage 2025, July 1, 2020–2025 Intercensal, 2010–2020

The highest observed population in this annual series was 6,265,347 in 2025. This is a peak within 2020–2025 coverage, not an all-time record.

Maryland: July 1 annual population estimates, Vintage 2025
Reference datePopulationAnnual change
July 1, 20206,178,387—
July 1, 20216,176,035-2,352
July 1, 20226,183,257+7,222
July 1, 20236,204,927+21,670
July 1, 20246,245,314+40,387
July 1, 20256,265,347+20,033
Why is the April 2020 estimates base different from a census count?

The PEP estimates base here is 6,181,640 residents on April 1, 2020. It incorporates the Census Bureau’s corrections and geographic revisions and serves as the starting point for this annual series. It is not labeled an original 2020 census count. The chart starts at July 1, 2020, so its five-year change uses two July observations. Read about measurement types.

Maryland population by year, 2010–2020

From the April 2010 estimates base to the April 2020 census count, Maryland gained 403,416 residents (+7.0%). These Census Bureau intercensal estimates use 2020 boundaries and were released in November 2024.

Maryland: 2010–2020 intercensal population estimates and April 1, 2020 census count, 2020 boundaries
DatePopulationAnnual change
April 1, 2010 · estimates base5,773,787—
July 1, 20105,791,715—
July 1, 20115,854,930+63,215
July 1, 20125,914,854+59,924
July 1, 20135,963,434+48,580
July 1, 20146,010,059+46,625
July 1, 20156,050,280+40,221
July 1, 20166,080,556+30,276
July 1, 20176,113,486+32,930
July 1, 20186,139,211+25,725
July 1, 20196,163,769+24,558
April 1, 2020 · census count6,177,203—

The April 2020 census count (6,177,203) and the Vintage 2025 April 2020 base (6,181,640) differ by 4,437. The gap comes from the Census Bureau’s revised 2020 base, not population change, so measure growth within one series. This file’s April 2020 figure also differs by 21 from the 2020 census count in the 1910–2020 table (6,177,224); both are shown as the Census Bureau published them. Source and download

Maryland population by census year, 1910–2020

These are separate census counts from the Census Bureau’s historical population-change table. Historical geographic definitions apply; they are not standardized to the 2025 boundary. Census dates changed historically: April 15, 1910; January 1, 1920; April 1, 1930 and 1940; and April 1 from 1950 onward.

Decennial census counts for Maryland
Census yearResident populationChange from previous census
19101,295,346—
19201,449,661+11.9%
19301,631,526+12.5%
19401,821,244+11.6%
19502,343,001+28.6%
19603,100,689+32.3%
19703,922,399+26.5%
19804,216,975+7.5%
19904,781,468+13.4%
20005,296,486+10.8%
20105,773,552+9.0%
20206,177,224+7.0%

Census counts, not annual estimates. Historical source and download

Growth and density

Between July 1, 2020 and July 1, 2025, Maryland gained 86,960 residents, a 1.41% increase. The annualized change over these five elapsed years was +0.28%. Annualized change is a summary of the interval; it does not imply that the population changed at that rate in every year.

The 2025 Gazetteer reports 9,710.97 square miles of land. Dividing the July 1, 2025 population by that compatible land area gives 645.2 people per square mile. Water area is excluded. Density depends on geographic boundaries. It describes this entire geography, rather than a typical neighborhood or built-up area.

Calculations use unrounded source values. Population counts are displayed as integers, percentages to two decimals and density to one decimal. Calculation methods · Growth calculator

Components of population change

The published components cover July 1, 2024 through June 30, 2025. Natural change equals births minus deaths. Net migration is arrivals minus departures; it does not establish why people moved.

Natural change
+11,444
Net domestic migration
-12,127
Net international migration
+20,503
Residual
+213
Source-published components, annual interval ending June 30, 2025
ComponentPeople
Births65,090
Deaths53,646
Natural change+11,444
Net domestic migration-12,127
Net international migration+20,503
Residual+213
Total population change+20,033

Reconciliation: natural change + net domestic migration + net international migration + residual = +20,033. Births and deaths are already included in natural change and must not be added again. Source: NST-EST2025-ALLDATA.csv; Vintage 2025.

How Maryland compares

Growth rates below use the same Vintage 2025 series for every row, so they can be compared directly. Regional and national rates combine faster- and slower-growing states.

Population and growth compared with larger geographies, Vintage 2025
GeographyPopulation · 2025Growth · 2024–25Growth · 2020–25
Maryland6,265,347+0.32%+1.41%
South region133,833,983+0.88%+5.82%
United States341,784,857+0.52%+3.08%

Maryland demographics: age, race and income

The median age in Maryland is 39.4 years, compared with 38.9 in U.S.. 43.4% of adults 25 and older hold a bachelor’s degree or higher, and the median household income is $103,678. About 9.4% of residents live below the poverty level, and 16.6% were born outside the United States.

These are American Community Survey 5-year estimates for 2020–2024. They describe the 60 months ending in December 2024, come from a sample survey with the margins of error shown, and are separate from the July 1, 2025 population estimate above.

Maryland population characteristics, ACS 2020–2024 5-year estimates with 90 percent margins of error
CharacteristicMarylandMarginU.S.
Age and sex
Median age39.4±0.138.9
Under 18 years22.2%±0.122.0%
65 years and over16.7%±0.117.2%
Female51.3%±<0.150.5%
Race and Hispanic origin
Hispanic or Latino (any race)12.5%±<0.119.3%
White alone, not Hispanic46.6%±0.157.4%
Black alone, not Hispanic28.9%±0.111.9%
Asian alone, not Hispanic6.5%±<0.15.9%
American Indian and Alaska Native, not Hispanic0.1%±<0.10.5%
Native Hawaiian and Pacific Islander, not Hispanic0.0%±<0.10.2%
Some other race, not Hispanic0.7%±<0.10.6%
Two or more races, not Hispanic4.6%±0.14.3%
Born outside the United States16.6%±0.214.1%
Households and education
Households2,362,928±3,782129,227,496
Average household size2.57±0.012.53
Bachelor’s degree or higher, age 25+43.4%±0.335.7%
Income and poverty
Median household income$103,678±$597$80,734
Below the poverty level9.4%±0.212.5%

Margins are 90% margins of error. Percentages are computed from published Summary File counts with Census Bureau margin formulas. ACS survey population: 6,206,011; 2024 boundaries. Source and download

Geographic context

County totals below describe separate county units. Incorporated cities are not an exhaustive division of a state, so their populations must not be summed as a state control total.

Resident population, July 1, 2025; change since July 1, 2024. PEP Vintage 2025.
PlacePopulation · 2025Change · 2024–25Growth · 2024–25People / sq. mi.
Montgomery CountyMaryland · County equivalent · 240311,074,582+1,537+0.14%2,179.1
Prince George's CountyMaryland · County equivalent · 24033970,374+5,778+0.60%2,010.7
Baltimore CountyMaryland · County equivalent · 24005847,650-788-0.09%1,416.6
Anne Arundel CountyMaryland · County equivalent · 24003603,380+2,239+0.37%1,454.6
Baltimore cityMaryland · County equivalent · 24510569,997-56-0.01%7,041.7
Howard CountyMaryland · County equivalent · 24027339,183+1,388+0.41%1,351.6
Frederick CountyMaryland · County equivalent · 24021302,883+4,028+1.35%458.5
Harford CountyMaryland · County equivalent · 24025266,446+822+0.31%609.5
Carroll CountyMaryland · County equivalent · 24013176,677-113-0.06%394.7
Charles CountyMaryland · County equivalent · 24017176,593+2,094+1.20%385.7

Showing 10 of 24 related records. All counties · All incorporated places

Places with nearby population ranks

Neighboring 2025 population ranks. Similar population does not imply similar density, boundaries or demographics.

Resident population, July 1, 2025; change since July 1, 2024. PEP Vintage 2025.
PlacePopulation · 2025Change · 2024–25Growth · 2024–25People / sq. mi.
IndianaIndiana · State · 186,973,333+38,579+0.56%194.6
MissouriMissouri · State · 296,270,541+26,997+0.43%91.2
ColoradoColorado · State · 086,012,561+24,059+0.40%58.0
WisconsinWisconsin · State · 555,972,787+15,619+0.26%110.3

Source, citation and downloads

U.S. Census Bureau, Population Estimates Program, Vintage 2025, NST-EST2025-ALLDATA.csv, variable POPESTIMATE2025; Maryland, Maryland, geographic code 24; resident population 6,265,347 on July 1, 2025; boundaries January 1, 2025. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/state/totals/NST-EST2025-ALLDATA.csv. Retrieved September 30, 2026. US Population Data snapshot pep-2025-r1, transformation 1.

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