Registered Voters by County

as of 2024-05

Participation among current voters (voter file)

Source: State Board of Elections report for 2024-05 (PDF), downloaded 2026-06-24, read from the PDF's own text and checked: each county's parties add up to its total and the 24 counties add up to the statewide row. Download this month as CSV or see its provenance record.
Democratic minus Republican share of active voters, as of May 2024
Allegany: Republicans +27 points Anne Arundel: Democrats +11 points Baltimore City: Democrats +68 points Baltimore County: Democrats +30 points Calvert: Republicans +7 points Caroline: Republicans +21 points Carroll: Republicans +24 points Cecil: Republicans +21 points Charles: Democrats +42 points Dorchester: Democrats +1 points Frederick: Democrats +5 points Garrett: Republicans +50 points Harford: Republicans +8 points Howard: Democrats +31 points Kent: Democrats +3 points Montgomery: Democrats +45 points Prince George's: Democrats +69 points Queen Anne's: Republicans +22 points Somerset: Republicans +5 points St. Mary's: Republicans +9 points Talbot: Republicans +4 points Washington: Republicans +13 points Wicomico: Democrats +3 points Worcester: Republicans +14 points
  • Republican by 40+ points
  • Republican by 10 to 40
  • within 10 points
  • Democratic by 10 to 40
  • Democratic by 40+ points
Unaffiliated share of active voters, as of May 2024
Allegany: 20.6% Anne Arundel: 25.3% Baltimore City: 15.8% Baltimore County: 20.4% Calvert: 23.6% Caroline: 22.0% Carroll: 23.2% Cecil: 23.9% Charles: 19.6% Dorchester: 18.0% Frederick: 26.2% Garrett: 14.9% Harford: 23.0% Howard: 26.0% Kent: 19.8% Montgomery: 24.9% Prince George's: 16.2% Queen Anne's: 21.8% Somerset: 17.6% St. Mary's: 23.5% Talbot: 21.0% Washington: 23.5% Wicomico: 22.3% Worcester: 21.1%
  • under 15%
  • 15 to 18%
  • 18 to 21%
  • 21 to 24%
  • 24% or more
Change over a year in active voters, May 2023 to May 2024
Allegany: -0.8% Anne Arundel: +0.7% Baltimore City: +0.3% Baltimore County: +0.8% Calvert: +1.0% Caroline: +0.9% Carroll: +0.5% Cecil: +1.6% Charles: +1.8% Dorchester: +1.5% Frederick: +2.2% Garrett: +0.5% Harford: +1.0% Howard: +1.4% Kent: +0.7% Montgomery: +1.3% Prince George's: +1.1% Queen Anne's: +1.8% Somerset: +0.8% St. Mary's: +1.8% Talbot: +0.2% Washington: +1.3% Wicomico: +0.4% Worcester: +1.3%
  • fewer: under -1.5%
  • -1.5 to -0.5%
  • -0.5 to 0.5%
  • 0.5 to 1.5%
  • more: 1.5% or more
County # Reg vs month before vs year before DEM REP UNAF LIB NLM OTH
Allegany 43,567 +4 (0.0%) −344 (−0.8%) 10,957 (25.1%) 22,760 (52.2%) 8,992 (20.6%) 265 (0.6%) 21 (0.0%) 572 (1.3%)
Anne Arundel 415,003 +22 (0.0%) +2,777 (+0.7%) 173,325 (41.8%) 129,487 (31.2%) 105,156 (25.3%) 2,509 (0.6%) 200 (0.0%) 4,326 (1.0%)
Baltimore City 395,387 +363 (+0.1%) +1,005 (+0.3%) 296,923 (75.1%) 28,556 (7.2%) 62,599 (15.8%) 1,198 (0.3%) 199 (0.1%) 5,912 (1.5%)
Baltimore County 572,815 −36 (0.0%) +4,278 (+0.8%) 307,367 (53.7%) 137,983 (24.1%) 116,792 (20.4%) 2,681 (0.5%) 231 (0.0%) 7,761 (1.4%)
Calvert 69,322 +11 (0.0%) +688 (+1.0%) 23,555 (34.0%) 28,185 (40.7%) 16,353 (23.6%) 462 (0.7%) 39 (0.1%) 728 (1.1%)
Caroline 22,052 −9 (0.0%) +193 (+0.9%) 6,065 (27.5%) 10,745 (48.7%) 4,847 (22.0%) 127 (0.6%) 9 (0.0%) 259 (1.2%)
Carroll 129,423 −62 (0.0%) +598 (+0.5%) 33,316 (25.7%) 63,898 (49.4%) 29,993 (23.2%) 841 (0.6%) 49 (0.0%) 1,326 (1.0%)
Cecil 72,589 +26 (0.0%) +1,112 (+1.6%) 19,134 (26.4%) 34,648 (47.7%) 17,353 (23.9%) 491 (0.7%) 37 (0.1%) 926 (1.3%)
Charles 124,288 +56 (0.0%) +2,198 (+1.8%) 75,082 (60.4%) 23,093 (18.6%) 24,413 (19.6%) 442 (0.4%) 47 (0.0%) 1,211 (1.0%)
Dorchester 23,385 −20 (−0.1%) +351 (+1.5%) 9,511 (40.7%) 9,278 (39.7%) 4,215 (18.0%) 113 (0.5%) 8 (0.0%) 260 (1.1%)
Frederick 202,059 +18 (0.0%) +4,284 (+2.2%) 77,906 (38.6%) 68,198 (33.8%) 52,867 (26.2%) 1,256 (0.6%) 101 (0.0%) 1,731 (0.9%)
Garrett 20,733 +3 (0.0%) +112 (+0.5%) 3,522 (17.0%) 13,804 (66.6%) 3,087 (14.9%) 109 (0.5%) 6 (0.0%) 205 (1.0%)
Harford 193,541 −36 (0.0%) +1,987 (+1.0%) 64,524 (33.3%) 80,880 (41.8%) 44,543 (23.0%) 1,273 (0.7%) 83 (0.0%) 2,238 (1.2%)
Howard 235,402 +168 (+0.1%) +3,188 (+1.4%) 122,073 (51.9%) 48,463 (20.6%) 61,318 (26.0%) 974 (0.4%) 105 (0.0%) 2,469 (1.0%)
Kent 14,062 −11 (−0.1%) +100 (+0.7%) 5,758 (40.9%) 5,307 (37.7%) 2,779 (19.8%) 71 (0.5%) 3 (0.0%) 144 (1.0%)
Montgomery 687,813 +486 (+0.1%) +8,674 (+1.3%) 407,995 (59.3%) 98,486 (14.3%) 171,413 (24.9%) 2,415 (0.4%) 299 (0.0%) 7,205 (1.0%)
Prince George's 606,422 +209 (0.0%) +6,539 (+1.1%) 455,152 (75.1%) 38,819 (6.4%) 98,090 (16.2%) 1,552 (0.3%) 275 (0.0%) 12,534 (2.1%)
Queen Anne's 40,701 +23 (+0.1%) +734 (+1.8%) 11,077 (27.2%) 20,094 (49.4%) 8,886 (21.8%) 237 (0.6%) 16 (0.0%) 391 (1.0%)
Somerset 14,357 −17 (−0.1%) +118 (+0.8%) 5,424 (37.8%) 6,163 (42.9%) 2,526 (17.6%) 70 (0.5%) 6 (0.0%) 168 (1.2%)
St. Mary's 76,427 +83 (+0.1%) +1,316 (+1.8%) 24,912 (32.6%) 32,142 (42.1%) 17,985 (23.5%) 502 (0.7%) 41 (0.1%) 845 (1.1%)
Talbot 28,775 +9 (0.0%) +47 (+0.2%) 10,615 (36.9%) 11,673 (40.6%) 6,034 (21.0%) 166 (0.6%) 12 (0.0%) 275 (1.0%)
Washington 101,024 −43 (0.0%) +1,341 (+1.3%) 30,920 (30.6%) 44,448 (44.0%) 23,779 (23.5%) 661 (0.7%) 30 (0.0%) 1,186 (1.2%)
Wicomico 66,295 −44 (−0.1%) +276 (+0.4%) 26,169 (39.5%) 24,020 (36.2%) 14,807 (22.3%) 364 (0.5%) 25 (0.0%) 910 (1.4%)
Worcester 43,062 −22 (−0.1%) +542 (+1.3%) 13,633 (31.7%) 19,538 (45.4%) 9,072 (21.1%) 239 (0.6%) 16 (0.0%) 564 (1.3%)
Total 4,198,504 +1,181 (0.0%) +42,114 (+1.0%) 2,214,915 (52.8%) 1,000,668 (23.8%) 907,899 (21.6%) 19,018 (0.5%) 1,858 (0.0%) 54,146 (1.3%)
Change from month before +1,621 (+0.1%) +892 (+0.1%) −2,325 (−0.3%) −26 (−0.1%) +1,228 (+194.9%) −209 (−0.4%)
Change from year before −19,332 (−0.9%) +9,930 (+1.0%) +47,592 (+5.5%) +1,027 (+5.7%) – +1,039 (+2.0%)