Missouri's 1st congressional district (MO-01)
Missouri's 1st congressional district (MO-01) covers parts or all of St. Louis city and St. Louis County, and 50 ZIP codes (38 wholly inside it). Its 2020 population was 769,364. This is the map in force for the November 3, 2026 election.
Who represents MO-01
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (MO-01) | Wesley Bell (D) | 202-225-2406 |
| U.S. Senator | Eric Schmitt (R) | 202-224-5721 · contact form |
| U.S. Senator | Josh Hawley (R) | 202-224-6154 · contact form |
Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in MO-01 |
|---|---|
| St. Louis city | 100% |
| St. Louis County | 47% |
ZIP codes
Percentages mark ZIPs only partly in MO-01: the share of that ZIP's residents inside it.
- 63031
- 63033
- 63034
- 63042
- 63043 (74%)
- 63044
- 63045
- 63074
- 63101
- 63102
- 63103
- 63104
- 63105
- 63106
- 63107
- 63108
- 63109
- 63110
- 63111
- 63112
- 63113
- 63114
- 63115
- 63116
- 63117 (48%)
- 63118
- 63119 (53%)
- 63120
- 63121
- 63122 (1.7%)
- 63123 (4.2%)
- 63124 (40%)
- 63125 (1.2%)
- 63130
- 63131 (4.8%)
- 63132
- 63133
- 63134
- 63135
- 63136
- 63137
- 63138
- 63139
- 63140
- 63141 (18%)
- 63143 (16%)
- 63144 (71%)
- 63146 (71%)
- 63147
- 63155
Towns
Airport township, Ferguson township, Florissant township, Lewis and Clark township, Midland township, Normandy township, Norwood township, Spanish Lake township, St. Ferdinand township, St. Louis city, University township, Northwest township, Creve Coeur township, Clayton township, Hadley township, Jefferson township, Maryland Heights township and Missouri River township.
Get this in your AI agent
Your agent can draw every precinct in MO-01, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:2901", children_level="precinct", include_districts=True)