Rockville Population

1860–2026

67,431

2026 projection

0.5% since 2020 (increase)

010K20K30K40K50K60K70K186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Rockville. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202667,431-1320.20%
202567,563+8181.23%
202466,745+1780.27%
202366,567-1150.17%
202266,682-2110.32%
202166,893-2240.33%
202067,117+8911.35%
201966,226-1440.22%
201866,370-180.03%
201766,388+6891.05%

Showing 10 of 32 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Rockville is growing slower than Montgomery County, Maryland, and the U.S.

  • United States+3.1%
  • Maryland+1.4%
  • Montgomery County+1.3%
  • Rockville+0.4%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Rockville Demographics

39.6median age

Median age

Female40.8 yrs
Male38.1 yrs

Adults

53,977
12,739 seniors (65+) · 24% of adults41,238 other adults

Sex

Female 52.4% · 35,446Male 47.6% · 32,225

Population by age

MaleFemale85+ years, male: 73685+ years, female: 1,46180–84 years, male: 92180–84 years, female: 1,02275–79 years, male: 83575–79 years, female: 1,53770–74 years, male: 1,56870–74 years, female: 1,34965–69 years, male: 1,32065–69 years, female: 1,99060–64 years, male: 1,58760–64 years, female: 2,26055–59 years, male: 2,11055–59 years, female: 1,97250–54 years, male: 2,11550–54 years, female: 2,14045–49 years, male: 2,40945–49 years, female: 2,22340–44 years, male: 1,84540–44 years, female: 2,10435–39 years, male: 2,39435–39 years, female: 2,74230–34 years, male: 2,80330–34 years, female: 2,78025–29 years, male: 2,08325–29 years, female: 2,51520–24 years, male: 1,78820–24 years, female: 2,24815–19 years, male: 1,80115–19 years, female: 1,51610–14 years, male: 2,08910–14 years, female: 2,0455–9 years, male: 2,1575–9 years, female: 1,5390–4 years, male: 1,6640–4 years, female: 2,00385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 677 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Rockville Income

$128,649median household income

Median household income

$128,649

Half of households earn more, half earn less

Median earnings

$82,015

Typical yearly pay for a worker 25 or older.

Poverty rate

7.6%

About 1 in 13 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Rockville Marital Status

52% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married52%56%48%
Never married32%33%32%
Divorced9%8%10%
Widowed6%2%9%
Separated1%1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources