What you can build

Annual incorporated-place and minor-civil-division estimates from one consistent vintage; CDPs are not covered. Use this dataset as a sourced input to an application, analytical model or retrieval tool. Retain its native dimensions when joining it with your own records.

Query Annual City and Town Population

The example below is a real bounded request against the available release. Replace the environment variable with your server-side API credential. Review endpoint parameters and response schemas before changing selectors.

Verified API request

curl --fail --get "https://api.geoamcan.com/v1/demographics?limit=1&dataset=population-cities&geo_type=county_subdivision&geoid=0911001080&metrics=popestimate" \
  -H "Authorization: Bearer $GEOAMCAN_API_KEY"

Saved response excerpt

{
  "source_attribution": {},
  "requested_area": {
    "geographic_resolution": "county_subdivision",
    "geoid": "0911001080"
  },
  "data": [
    {
      "dataset": "population-cities",
      "source": "Census Bureau",
      "release": "Vintage 2025",
      "geographic_resolution": "county_subdivision",
      "geoid": "0911001080",
      "geography_vintage": "2025",
      "period": "2025",
      "naics": "",
      "component": "",
      "metrics": {
        "popestimate": 3173
      },
      "margins_of_error": {},
      "flags": {
        "source_name": "Andover town",
        "summary_level": "061",
        "functional_status": "A"
      }
    }
  ],
  "availability": {
    "population-cities": "available"
  },
  "next_offset": 1,
  "returned_count": 1,
  "complete": false,
  "snapshot": {
    "population-cities": {
      "release_id": 22,
      "release": "Vintage 2025",
      "fingerprint": "64cca673219a297b21d836f5baff0060"
    }
  },
  "metric_definitions": {
    "population-cities": {
      "popestimate": {
        "label": "Annual resident population",
        "unit": "persons",
        "universe": null,
        "source_definition": {}
      }
    }
  },
  "coverage_limitations": {
    "population-cities": [
      "Incorporated places and published minor civil divisions only; CDPs and Hawaii incorporated places are not published."
    ]
  },
  "native_area_contexts": {},
  "commuting_flows": []
}

Captured 2026-10-26. Excerpt omits pagination credentials and may shorten nested records. Download verified source responses.

Coverage and interpretation

Coverage is limited to published source geographies and releases. Missing, suppressed and unavailable observations must not be treated as zero.

The active release shown here is a catalog snapshot. Check the live catalog and response provenance for current readiness. The underlying public source and Geoamcan access terms are separate; consult the source’s licensing and attribution requirements.

Source and methodology

Source: Census Bureau. Geoamcan is an independent API provider, with no agency affiliation or endorsement. Read our data methodology for source handling, geographic joins and update practices.

Related data

Put this data to work.

API access starts at US$195/month, subject to reasonable use. Contact us for high-volume workloads.

Get API access ↗Read integration guides

Annual City and Town Population API