HUD Housing Data API

What you can build

HUD USER Fair Market Rents and Section 8 Income Limits; USPS vacancy data restricted to eligible registered users. 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 HUD Housing Data

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.

curl --fail --get "https://api.geoamcan.com/v1/demographics?limit=1&dataset=hud&geo_type=county&geoid=01001&metrics=hud_median_family_income%2Chud_income_limit_30pct_1person%2Chud_income_limit_30pct_2person%2Chud_income_limit_30pct_3person%2Chud_income_limit_30pct_4person%2Chud_income_limit_30pct_5person" \
  -H "Authorization: Bearer $GEOAMCAN_API_KEY"

Saved response excerpt

{
  "source_attribution": {},
  "requested_area": {
    "geographic_resolution": "county",
    "geoid": "01001"
  },
  "data": [
    {
      "dataset": "hud",
      "source": "HUD",
      "release": "FMR FY 2027 / Income Limits FY 2026",
      "geographic_resolution": "county",
      "geoid": "01001",
      "geography_vintage": "HUD published area definitions",
      "period": "FY 2027",
      "naics": "",
      "component": "fmr",
      "metrics": {},
      "margins_of_error": {},
      "flags": {
        "metro": 1,
        "stusps": "AL",
        "product": "fmr",
        "countyname": "Autauga County",
        "source_url": "https://www.huduser.gov/portal/datasets/fmr/fmr2027/FY27_FMRs.xlsx",
        "fiscal_year": 2027,
        "hudareacode": "METRO33860M33860",
        "hudareaname": "Montgomery, AL MSA",
        "countytownname": "",
        "effective_date": "2026-10-01",
        "published_fips": "0100199999",
        "area_applicability": "Published HUD area threshold; not a tract estimate or observed median rent."
      }
    }
  ],
  "availability": {
    "hud": "available"
  },
  "next_offset": 1,
  "returned_count": 1,
  "complete": false,
  "snapshot": {
    "hud": {
      "release_id": 17,
      "release": "FMR FY 2027 / Income Limits FY 2026",
      "fingerprint": "8174e3ebe2b50a2c7e300ca6dc2a1e1b"
    }
  },
  "metric_definitions": {},
  "coverage_limitations": {
    "hud": [
      "HUD USPS vacancy data is available only to registered governmental entities and nonprofit organizations under a permitted-purpose sublicense; not imported for this commercial service."
    ]
  },
  "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: HUD. 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

• American Community Survey — 5-Year
• Census Population Estimates
• ACS Housing
• Annual City and Town Population