Maryland / MD-07
Maryland District 7
Score
Irregularity score 63 IrregularLess compact than 68% of other congressional districts.
140th least compact of 429 nationally, 3rd of 8 in Maryland.
A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work
The three measures
- Polsby-Popper
- 0.22at least as compact as 40% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.36at least as compact as 18% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.79at least as compact as 53% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.
Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.
The state's edge
34% of this district's border is the state's edge: a coastline, a national border or a state line. Mapmakers don't choose those lines. A ragged one, like a coastline or a river, lowers Polsby-Popper. Reock and convex hull count only the state's own land, so water and neighboring states don't count against them. More on the state's edge
Who lives here
Most of this district's voting-age residents are Black (54.0%). The Voting Rights Act can require districts that keep a minority community together so it can elect candidates it prefers, and those districts can be irregular on purpose. A district like this isn't necessarily drawn for that reason, and the site doesn't know whether this one was. Figures are from the 2020 Census. How these are counted
Cities and towns
The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.
- Baltimore city555,423 of its 585,708 residents
- Dundalk communityall 67,796 residents
- Catonsville community26,011 of its 44,701 residents
- Lochearn communityall 25,511 residents
- Milford Mill community22,848 of its 30,622 residents
- Arbutus communityall 21,655 residents
- Woodlawn community18,710 of its 39,986 residents
- Edgemere communityall 9,069 residents
- Lansdowne communityall 9,004 residents
- Baltimore Highlands communityall 7,740 residents
And 1 smaller place. How places are counted
ZIP codes
37 ZIP codes have residents in this district. 16 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
- 21052
- 21133 (4%)
- 21201
- 21202
- 21205
- 21206 (81%)
- 21207
- 21208 (33%)
- 21209 (29%)
- 21210 (15%)
- 21211 (46%)
- 21212 (48%)
- 21213
- 21214
- 21215 (96%)
- 21216
- 21217
- 21218
- 21219
- 21222
- 21223
- 21224
- 21225 (53%)
- 21226 (40%)
- 21227
- 21228 (44%)
- 21229
- 21230
- 21231
- 21233
- 21234 (13%)
- 21236 (1%)
- 21237 (7%)
- 21239 (81%)
- 21244 (48%)
- 21250
- 21251
These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched
2024 presidential vote
Shares of the votes for the two of them; other candidates are left out. Maryland used the same lines in 2024, so this is added up from precinct results. A precinct split between districts is divided by its House votes, so the figures are close estimates. Where the votes come from
U.S. House
Kweisi Mfume, Democrat
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the Maryland State Board of Elections, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
Maryland's senators
- Angela D. Alsobrooks, Democrat
- Chris Van Hollen, Democrat
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Where it sits in Maryland
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
The area outlined with dashes on the map, enlarged so its smaller districts can be seen.
Spot a problem with this district? Email us about MD-07.