99chambers

Maryland House of Delegates seat · lines in effect since 2022

Maryland Delegate District 30B

A district of about 41,000 people, 44% of adults with a bachelor's degree. It votes R+7.8 relative to the nation for president.

Seth Howard (R) · since Nov 4, 2014Next election Nov 5, 2030The 2026 race →

Where it sits among all 71 seats

Every Maryland House of Delegates seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+7.850th most
Democratic
Most DemocraticMost Republican36th seat · the majority lineDistrict 30B

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

20222026
Maryland House of DelegatesR+13.5R+7.3

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 71 seats. Small marks are other seats in Maryland. The black marker is District 30B.

Adults with a bachelor's degree44% 60th pct · 29th of 71 in MD

Higher than 60% of seats.

White adults without a degree44% 74th pct · 19th of 71 in MD

Higher than 74% of seats.

Hispanic residents8% 53rd pct · 34th of 71 in MD

Higher than 53% of seats.

Black residents7% 14th pct · 61st of 71 in MD

Lower than 86% of seats.

Asian residents1% 1st pct · 70th of 71 in MD

Lower than 99% of seats.

People per square mile244 16th pct · 60th of 71 in MD

Less dense than 84% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

District 29C
40% college gradsR+14.2CountingDistrict 4
47% college gradsR+6.0CountingDistrict 27C
34% college gradsR+13.7CountingDistrict 5
41% college gradsR+21.9Counting

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2022.

  1. Seth Howard (R)
    2023– · Won 2022 by 13.5

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)