Registered Voters by County

as of 2018-06

Participation among current voters (voter file)

Source: State Board of Elections report for 2018-06 (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 June 2018
Allegany: Republicans +18 points Anne Arundel: Democrats +7 points Baltimore City: Democrats +71 points Baltimore County: Democrats +30 points Calvert: Republicans +6 points Caroline: Republicans +13 points Carroll: Republicans +26 points Cecil: Republicans +10 points Charles: Democrats +38 points Dorchester: Democrats +8 points Frederick: Republicans +2 points Garrett: Republicans +43 points Harford: Republicans +7 points Howard: Democrats +24 points Kent: Democrats +10 points Montgomery: Democrats +42 points Prince George's: Democrats +72 points Queen Anne's: Republicans +20 points Somerset: Democrats +5 points St. Mary's: Republicans +5 points Talbot: Republicans +5 points Washington: Republicans +11 points Wicomico: Democrats +6 points Worcester: Republicans +7 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 June 2018
Allegany: 16.7% Anne Arundel: 21.8% Baltimore City: 12.1% Baltimore County: 16.6% Calvert: 20.5% Caroline: 19.0% Carroll: 19.9% Cecil: 22.0% Charles: 16.3% Dorchester: 14.2% Frederick: 22.8% Garrett: 12.6% Harford: 19.5% Howard: 22.4% Kent: 15.8% Montgomery: 22.0% Prince George's: 11.8% Queen Anne's: 18.5% Somerset: 13.9% St. Mary's: 20.4% Talbot: 17.9% Washington: 20.3% Wicomico: 18.0% Worcester: 18.1%
  • under 12%
  • 12 to 15%
  • 15 to 18%
  • 18 to 21%
  • 21% or more
Change over a year in active voters, June 2017 to June 2018
Allegany: -0.4% Anne Arundel: +0.7% Baltimore City: -0.6% Baltimore County: +0.2% Calvert: +1.4% Caroline: +0.8% Carroll: +0.4% Cecil: +0.8% Charles: +1.5% Dorchester: +1.1% Frederick: +2.0% Garrett: +0.2% Harford: +1.0% Howard: +1.0% Kent: +0.3% Montgomery: +0.8% Prince George's: -0.7% Queen Anne's: +0.5% Somerset: +0.5% St. Mary's: +1.2% Talbot: +0.2% Washington: +0.8% Wicomico: +0.0% Worcester: +0.2%
  • fewer: under -1.2%
  • -1.2 to -0.4%
  • -0.4 to 0.4%
  • 0.4 to 1.2%
  • more: 1.2% or more
County # Reg vs month before vs year before DEM REP UNAF LIB GRN OTH
Allegany 43,162 +2 (0.0%) −182 (−0.4%) 13,760 (31.9%) 21,461 (49.7%) 7,220 (16.7%) 288 (0.7%) 142 (0.3%) 291 (0.7%)
Anne Arundel 385,567 +188 (0.0%) +2,564 (+0.7%) 161,590 (41.9%) 135,229 (35.1%) 83,878 (21.8%) 2,782 (0.7%) 829 (0.2%) 1,259 (0.3%)
Baltimore City 385,277 +1,245 (+0.3%) −2,457 (−0.6%) 303,597 (78.8%) 30,791 (8.0%) 46,495 (12.1%) 1,431 (0.4%) 1,253 (0.3%) 1,710 (0.4%)
Baltimore County 552,390 +1,059 (+0.2%) +928 (+0.2%) 308,555 (55.9%) 142,892 (25.9%) 91,859 (16.6%) 3,164 (0.6%) 1,428 (0.3%) 4,492 (0.8%)
Calvert 65,125 +100 (+0.2%) +884 (+1.4%) 23,553 (36.2%) 27,200 (41.8%) 13,368 (20.5%) 484 (0.7%) 141 (0.2%) 379 (0.6%)
Caroline 20,223 +3 (0.0%) +158 (+0.8%) 6,797 (33.6%) 9,328 (46.1%) 3,849 (19.0%) 108 (0.5%) 26 (0.1%) 115 (0.6%)
Carroll 122,021 +91 (+0.1%) +489 (+0.4%) 32,259 (26.4%) 63,498 (52.0%) 24,250 (19.9%) 925 (0.8%) 265 (0.2%) 824 (0.7%)
Cecil 64,878 +71 (+0.1%) +544 (+0.8%) 21,412 (33.0%) 28,063 (43.3%) 14,257 (22.0%) 438 (0.7%) 159 (0.2%) 549 (0.8%)
Charles 111,962 +239 (+0.2%) +1,696 (+1.5%) 67,516 (60.3%) 25,034 (22.4%) 18,250 (16.3%) 503 (0.4%) 159 (0.1%) 500 (0.4%)
Dorchester 21,379 +40 (+0.2%) +236 (+1.1%) 9,945 (46.5%) 8,160 (38.2%) 3,030 (14.2%) 117 (0.5%) 25 (0.1%) 102 (0.5%)
Frederick 171,075 +249 (+0.1%) +3,293 (+2.0%) 63,249 (37.0%) 66,773 (39.0%) 38,970 (22.8%) 1,305 (0.8%) 441 (0.3%) 337 (0.2%)
Garrett 19,795 +11 (+0.1%) +36 (+0.2%) 4,235 (21.4%) 12,803 (64.7%) 2,485 (12.6%) 106 (0.5%) 36 (0.2%) 130 (0.7%)
Harford 179,950 +71 (0.0%) +1,742 (+1.0%) 64,385 (35.8%) 77,616 (43.1%) 35,077 (19.5%) 1,374 (0.8%) 382 (0.2%) 1,116 (0.6%)
Howard 214,150 +375 (+0.2%) +2,069 (+1.0%) 106,769 (49.9%) 55,845 (26.1%) 47,965 (22.4%) 1,252 (0.6%) 503 (0.2%) 1,816 (0.8%)
Kent 13,028 +27 (+0.2%) +40 (+0.3%) 6,024 (46.2%) 4,738 (36.4%) 2,058 (15.8%) 77 (0.6%) 28 (0.2%) 103 (0.8%)
Montgomery 649,947 +1,407 (+0.2%) +5,416 (+0.8%) 383,799 (59.1%) 113,992 (17.5%) 142,811 (22.0%) 3,033 (0.5%) 1,610 (0.2%) 4,702 (0.7%)
Prince George's 575,995 +681 (+0.1%) −3,941 (−0.7%) 453,334 (78.7%) 40,739 (7.1%) 67,722 (11.8%) 1,629 (0.3%) 1,040 (0.2%) 11,531 (2.0%)
Queen Anne's 35,709 +47 (+0.1%) +195 (+0.5%) 10,732 (30.1%) 17,854 (50.0%) 6,612 (18.5%) 256 (0.7%) 73 (0.2%) 182 (0.5%)
Somerset 13,135 +29 (+0.2%) +66 (+0.5%) 5,886 (44.8%) 5,268 (40.1%) 1,829 (13.9%) 60 (0.5%) 20 (0.2%) 72 (0.5%)
St. Mary's 70,734 +19 (0.0%) +814 (+1.2%) 25,685 (36.3%) 29,557 (41.8%) 14,407 (20.4%) 548 (0.8%) 132 (0.2%) 405 (0.6%)
Talbot 27,013 +9 (0.0%) +48 (+0.2%) 10,153 (37.6%) 11,626 (43.0%) 4,846 (17.9%) 156 (0.6%) 46 (0.2%) 186 (0.7%)
Washington 95,447 +15 (0.0%) +780 (+0.8%) 32,081 (33.6%) 42,528 (44.6%) 19,391 (20.3%) 705 (0.7%) 258 (0.3%) 484 (0.5%)
Wicomico 61,330 −26 (0.0%) +5 (0.0%) 26,507 (43.2%) 22,811 (37.2%) 11,027 (18.0%) 414 (0.7%) 139 (0.2%) 432 (0.7%)
Worcester 38,462 +72 (+0.2%) +67 (+0.2%) 14,039 (36.5%) 16,854 (43.8%) 6,950 (18.1%) 248 (0.6%) 82 (0.2%) 289 (0.8%)
Total 3,937,754 +6,024 (+0.2%) +15,490 (+0.4%) 2,155,862 (54.7%) 1,010,660 (25.7%) 708,606 (18.0%) 21,403 (0.5%) 9,217 (0.2%) 32,006 (0.8%)
Change from month before +5,989 (+0.3%) +895 (+0.1%) −805 (−0.1%) −6 (0.0%) −59 (−0.6%) +10 (0.0%)
Change from year before +5,174 (+0.2%) −7,113 (−0.7%) +16,470 (+2.4%) +953 (+4.7%) −121 (−1.3%) +127 (+0.4%)