Boundary Atlas

Marathon, Florida

Marathon is a city in Monroe County, Florida, with 9,689 residents in 2020. It is in Florida's 28th congressional district. Its state senate district is State Senate District 40; its state house district is State House District 120.

9,689residents (2020 Census)
8.4 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Monroe County100%

Congressional district

Congressional districtShare of residents
Florida's 28th congressional district (FL-28)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (FL-28)Carlos A. Gimenez (R)202-225-2778100%
U.S. SenatorAshley Moody (R)202-224-3041statewide
U.S. SenatorRick Scott (R)202-224-5274 · contact formstatewide
State Senator (State Senate District 40)Ana Maria Rodriguez (R)305-470-2552100%
State Representative (State House District 120)Jim Mooney (R)305-315-0780100%

Elected in 2024 under FL's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of residents
State Senate District 40100%

State house districtShare of residents
State House District 120100%

ZIP codes

Percentages mark ZIPs only partly in Marathon: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Marathon's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:1243000")

Marathon here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.