Boundary Atlas

Northfield, Kentucky

Northfield is a city in Jefferson County, Kentucky, with 991 residents in 2020. It is in Kentucky's 3rd congressional district. It spans 2 state house districts. Its state senate district is State Senate District 26.

991residents (2020 Census)
0.5 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Jefferson County100%

Congressional district

Congressional districtShare of residents
Kentucky's 3rd congressional district (KY-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (KY-03)Morgan McGarvey (D)202-225-5401100%
U.S. SenatorMitch McConnell (R)202-224-2541 · contact formstatewide
U.S. SenatorRand Paul (R)202-224-4343 · contact formstatewide
State Senator (State Senate District 26)Karen Berg (Democratic)100%
State Representative (State House District 48)Ken Fleming (R)64%
State Representative (State House District 32)Tina Bojanowski (Democratic)36%

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 26100%

State house districtShare of residents
State House District 4864%
State House District 3236%

ZIP codes

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

Get this in your AI agent

Your agent can get Northfield'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:2156730")

Northfield 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.