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100
MCP live MCP 2026-07-28 http

census-mcp-server

cyanheads/census-mcp-server

Query U.S. Census Bureau data, variables, and geography via MCP.

Uptime
100.0%
1 direct probes · 30d
Response
797ms
last probe
Tools
8
callable
Resources
0
readable
Prompts
0
available

Tools · 8

census_list_datasets

Browse available Census Bureau datasets with their supported vintage years. Use as the starting point when the right dataset is unknown — ACS5, ACS1, population estimates, decennial census, and the bu…

census_list_geographies

List the geography levels available for a given Census dataset and year, along with the parent geographies each level requires. Use before querying to confirm that the target geography level exists — …

census_search_variables

Search Census variables by keyword across variable labels and concept groups. Returns variable codes with human-readable labels — use this to go from a concept like "median household income" to the va…

census_get_variable

Fetch full metadata for one or more Census variable codes — label, concept group, predicate type, universe, and margin-of-error sibling references. Use to confirm a variable code before building a que…

census_list_predicate_values

List the codes a Census filter dimension accepts, so a predicates map can be written without guessing. Answers the question left open when census_query_data or census_compare_geographies reports that …

census_resolve_geography

Resolve a place name or street address to Census FIPS identifiers. Converts names like "King County, WA", "Seattle, WA", or "Seattle-Tacoma-Bellevue, WA" to the codes required by census_query_data and…

census_query_data

Query a Census dataset for one or more variables at a specific geography. Accepts FIPS codes for the target geography — use census_resolve_geography to convert place names to FIPS when needed. On ACS …

census_compare_geographies

Compare one or more variables across multiple geographies at the same level — all counties in a state, all states nationally, or a named set of specific geographies. Results are sorted and ranked. Cov…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "census-mcp-server": {
      "url": "https://census.caseyjhand.com/mcp",
      "transport": "http"
    }
  }
}