FIPS County Code Lookup — 3,231 US Counties
About
Look up US county FIPS codes. Search by code, county name, or state. 3,231 counties. Used by mortgage, title, GIS, and government platforms.
Details
- Author
- easysolutions906
- Downloads
- 274
- Categories
- Developer Tools
Jump to
- Lookup county by 5-digit FIPS code.
- Search counties by name with optional state filter.
- List all counties in a state by FIPS code or abbreviation.
- Retrieve database statistics and county counts per state.
- Supports both stdio (MCP) and HTTP (REST API) transports.
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
FIPS County Code Lookup — 3,231 US CountiesCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Install via npx @easysolutions906/mcp-fips and configure the server in your MCP client’s configuration file (e.g., claude_desktop_config.json or .cursor/mcp.json). Four MCP tools are available: fips_lookup, fips_search, fips_state, and fips_stats. Optionally, set the PORT environment variable to run the server in HTTP mode, which provides REST endpoints for lookups, search, state listing, batch operations, and statistics.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"fips county code lookup \u2014 3,231 us counties": {
"fips": {
"command": "npx",
"args": [
"-y",
"@easysolutions906/mcp-fips"
]
}
}
}
}McpServers
{
"fips": {
"command": "npx",
"args": [
"-y",
"@easysolutions906/mcp-fips"
]
}
}MCP FIPS Server
A Model Context Protocol (MCP) server for looking up US counties by FIPS code, name, or state. Covers all 50 states, DC, and territories.Tools (4 total)
| Tool | Description | |------|-------------| |fips_lookup | Look up a county by its 5-digit FIPS code |
| fips_search | Search counties by name, optionally filtered by state |
| fips_state | List all counties in a state by FIPS code or abbreviation |
| fips_stats | Get database statistics: total counties, states, and counts by state |
Install
``bash
npx @easysolutions906/mcp-fips
`
Claude Desktop
Add to your claude_desktop_config.json:
`json
{
"mcpServers": {
"fips": {
"command": "npx",
"args": ["-y", "@easysolutions906/mcp-fips"]
}
}
}
`
Cursor
Add to .cursor/mcp.json:
`json
{
"mcpServers": {
"fips": {
"command": "npx",
"args": ["-y", "@easysolutions906/mcp-fips"]
}
}
}
`
REST API
Set PORT env var to run as an HTTP server.
- GET /lookup?fips=06037 -- look up county by FIPS code
- GET /search?name=los+angeles&state=CA -- search counties by name
- GET /state/:code -- list all counties in a state (e.g., /state/CA)
- POST /lookup/batch -- batch lookup multiple FIPS codes
- GET /stats -- county counts by state
Data Source
US Census Bureau FIPS county codes. Run npm run build-data to regenerate from the latest Census data.
Transport
- stdio (default) -- for local use with Claude Desktop and Cursor
- HTTP -- set PORT env var to start in Streamable HTTP mode on /mcp`Sign in to leave a review
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