† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupRockvilleMarylandUnited States
German9.1%11.4%12.5%
Irish8.8%9.3%9.4%
English8.1%8.5%9.5%
Italian4.5%4.4%4.8%
American3.2%4.1%5.3%
Polish2.9%2.6%2.2%
Russian2.2%——
French1.6%1.1%1.6%
Asian Indian5.7%1.7%1.4%
Chinese5.7%1.3%1.3%
Korean2.5%0.8%0.4%
Filipino2.1%0.9%0.9%
Vietnamese1.8%0.4%0.6%
Pakistani0.7%0.3%—
Japanese0.6%—0.2%
Nepalese0.4%0.2%—
Salvadoran6.0%3.5%0.7%
Mexican1.4%2.0%11.3%
Guatemalan1.4%1.2%0.5%
Honduran1.2%0.7%0.3%
Peruvian1.1%0.3%—
Puerto Rican0.9%1.2%1.8%
Colombian0.9%0.4%0.4%
Dominican0.6%0.5%0.7%
African American†6.9%23.6%9.9%
Ethiopian1.5%0.7%—
African0.9%1.2%0.5%
Jamaican0.5%0.7%0.4%
Nigerian0.4%1.1%0.2%
Ghanaian0.3%0.3%—
Haitian0.3%0.3%0.3%
Maya1.6%——
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Rockville
Maryland
United States
Median age
39.6
39.5
39.1
Age 18–24
7.6%
8.5%
9.2%
Age 65 and older
18.9%
16.6%
17.2%
Household economy
Measure
Rockville
Maryland
United States
Median household income
$128,649
$103,678
$84,427
Poverty rate
7.6%
9.5%
12.5%
Bachelor's degree or higher (25+)
65.6%
43.5%
35.6%
Languages at home
Measure
Rockville
Maryland
United States
Speaks a non-English language at home
44.8%
21.1%
22.3%
Spanish
14.2%
9.6%
13.6%
Other Indo-European
5.7%
2.5%
2.0%
Chinese (incl. Mandarin & Cantonese)
7.9%
1.2%
1.1%
Other Asian & Pacific Island
3.5%
1.1%
1.1%
Religious landscape
Measure
Rockville
Maryland
United States
Catholic
—
14.7%
18.6%
Evangelical Protestant
—
11.2%
16.5%
Unclaimed / not counted
—
56.6%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Rockville, Maryland
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+32.0%
2008
+43.7%
2012
+43.3%
2016
+54.2%
2020
+62.6%
2024
+57.6%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
77.3%Harris25,279
19.8%Trump6,456
2.9%
D+57.6
R+5.0
D+59.1
32,683
D
80.9%Biden26,095
18.3%Trump5,892
0.9%
D+62.6
D+8.4
D+58.1
32,273
D
74.0%Clinton20,928
19.8%Trump5,602
6.2%
D+54.2
D+10.8
D+52.1
28,296
D
70.6%Obama19,040
27.3%Romney7,364
2.0%
D+43.3
R+0.3
D+39.5
26,950
D
71.2%Obama18,140
27.5%McCain7,012
1.3%
D+43.7
D+11.7
D+36.4
25,480
D
65.3%Kerry15,809
33.3%Bush8,066
1.4%
D+32.0
—
D+34.4
24,204
Rockville's voter base skews heavily toward college-educated professionals, many employed by federal agencies or contractors, producing consistent double-digit Democratic margins in recent statewide contests.
Across the recorded series it reached a Democratic high of 62.6 points in 2020. Between 2020 and 2024 the city moved 5.0 points toward the Republican candidate; the 2024 margin was 57.6 points.
A population of 67,671, a 45% non-Hispanic-white share, and a median household income of $128,649 describe the city. The city's voting pattern over the last decade is most similar to that of North Bethesda and Columbia.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, Rockville, Maryland voted Democratic by 57.6 points (D+57.6), carried by the Democratic candidate. Out of 32,683 votes cast, 25,279 went Democratic and 6,456 went Republican.
How many people live in Rockville, Maryland?
Rockville, Maryland has a population of 67,671 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Rockville, Maryland?
Median household income in Rockville, Maryland is $128,649 — above the national median of $80,734. The Maryland state median is $103,678.
What is the political history of Rockville, Maryland?
Akashic tracks 6 presidential elections in Rockville, Maryland from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
