Boundary Atlas

Buffalo, New York

Buffalo is a city in Erie County, New York, with 278,349 residents in 2020. It is in New York's 26th congressional district. It spans 2 state senate and 5 state house districts.

278,349residents (2020 Census)
40.4 sq miland area
20ZIP codes
1congressional district

County

CountyShare of residents
Erie County100%

Congressional district

Congressional districtShare of residents
New York's 26th congressional district (NY-26)100%

Elected officials

OfficeMemberContactShare of residents
MayorChristopher Scanloncitywide
U.S. Representative (NY-26)Timothy M. Kennedy (D)202-225-3306100%
U.S. SenatorCharles E. Schumer (D)202-224-6542 · contact formstatewide
U.S. SenatorKirsten E. Gillibrand (D)202-224-4451 · contact formstatewide
State Senator (State Senate District 63)April Baskin (Democratic)716-826-268373%
State Senator (State Senate District 61)Jeremy Zellner (Democratic)716-854-870527%
Assembly Member (Assembly District 141)Crystal Peoples-Stokes (Democratic)716-897-971446%
Assembly Member (Assembly District 149)Jon Rivera (Democratic)716-885-963026%
Assembly Member (Assembly District 142)Pat Burke (Democratic)716-608-609916%
Assembly Member (Assembly District 140)Bill Conrad (Democratic/Independence/Working Families)716-873-25407.5%
Assembly Member (Assembly District 143)Pat Chludzinski (R)716-686-00805.0%

From Wikidata (community-maintained); confirm on the city's website.

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); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of residents
State Senate District 6373%
State Senate District 6127%

State house districtShare of residents
Assembly District 14146%
Assembly District 14926%
Assembly District 14216%
Assembly District 1407.5%
Assembly District 1435.0%

ZIP codes

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

Get this in your AI agent

Your agent can get Buffalo'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:3611000")

Buffalo 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.