US Address Geocoder & Census Geography (Free Census Bureau API)

Geocode US addresses to lat/lon with the US Census Bureau geocoder, plus state/county FIPS, census tract and congressional district; reverse mode for coordinates. No API key, public-domain data.

Why this actor

• Adds tract + congressional district (for demographics joins) at a fraction of commercial geocoder cost.
• Pay only for results: $1.00 per 1,000 addresss, no start fee, failed lookups are free.
• Robust: automatic retries with exponential backoff, respects Retry-After, per-item error rows instead of crashed runs.
• Clean, flat JSON/CSV/Excel output ready for Google Sheets, Make, Zapier, n8n, Clay, or the Apify API.

Use cases

• Map and analyze customer/lead lists
• Join addresses to census demographics
• Political/advocacy district matching
• Logistics planning

Input

Field	Type	Description
addresses	array	One-line addresses. Free US Census Bureau geocoder.
coordinates	array	'lat,lon' to get state, county, tract, congressional district.
includeGeographies	boolean	State/county FIPS, tract, congressional district.
maxItems	integer	0 = no limit. Caps cost.

Example input:

{
  "addresses": [
    "1600 Pennsylvania Ave NW, Washington, DC 20500",
    "200 E Colfax Ave, Denver, CO 80203"
  ],
  "coordinates": [
    "39.7392,-104.9903"
  ]
}

Output

Each dataset item looks like this (real sample from a test run, long fields trimmed):

{
  "input": "1600 Pennsylvania Ave NW, Washington, DC 20500",
  "matchedAddress": "1600 PENNSYLVANIA AVE NW, WASHINGTON, DC, 20500",
  "latitude": 38.898702605245,
  "longitude": -77.035189204737,
  "tigerLineId": "76225813",
  "zip": "20500",
  "matches": 1,
  "state": "DC",
  "stateFips": "11",
  "county": "District of Columbia",
  "countyFips": "11001",
  "tract": "11001980000",
  "congressionalDistrict": "Delegate District (at Large)",
  "scrapedAt": "2026-10-14T16:30:09+00:00"
}

Rows that could not be processed contain an error field and are not charged.

Pricing

Pay-per-event: $0.001 per address (= $1.00 / 1,000). Use Max results to cap spend. Apify's free plan credit covers thousands of results per month.

Integrations & API

Run on a schedule in Apify Console, call via the Apify API / Python & JS clients, or connect to Make, Zapier, n8n, Google Sheets, Slack and webhooks. Works as a tool for AI agents via Apify MCP.

FAQ

Is this an official tool? No. It is an independent actor and is not affiliated with, sponsored or endorsed by the data source or any trademark owner named here.

Is it legal? The actor only reads publicly available data from public endpoints, without logins, and does not bypass paywalls or access controls. You are responsible for using the data in line with applicable laws (e.g. GDPR) and the source sites' terms.

Something broke? Open an issue in the Issues tab; we typically respond within 24 hours and ship fixes fast.