AddressAPI — Location Intelligence for any US Address

Data sources

14 verified sources — all in one call

Every source below is live and returning data today. All from US government databases — no secondary licensing, no data resale agreements.

Flood Zone

FEMA NFHL: flood zone code (A/X/V), SFHA status, subtype (minimal/moderate/high hazard)

Disaster History

FEMA OpenFEMA: total declared disasters by county, recent events, breakdown by decade and type

Opportunity Zone

HUD-designated Qualified Opportunity Zone status for tax-advantaged investment eligibility

Risk Score

Composite 0–100 score (letter grade) from flood, environmental, disaster, hazard, and health data

Health Outcomes

CDC/County Health Rankings: life expectancy, premature death rate, uninsured %, obesity rate

Social Vulnerability

CDC SVI: overall vulnerability percentile and component scores across socioeconomic and housing dimensions

Radon Risk

EPA zone classification (Zone 1–3), predicted average indoor radon level (pCi/L)

House Price Index

FHFA HPI: metro-level home price appreciation trends, year-over-year and 5-year change

Environmental

EPA: Superfund sites, contaminated facilities, and pollution hazards near the address

Utility Rates

NREL/EIA: residential electricity rate ($/kWh), utility provider name and ID

Climate & Weather

NOAA climate context + NWS live forecast: current temp, conditions, wind, active alerts

Natural Hazards

USGS seismic design values, earthquake risk classification, and regional hazard profile

Food Access

USDA: food desert status, low-income/low-access designation, nearest grocery distance

Land Use & Building

Zoning/land use classification and building-level data for the matched address

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Elevation

USGS 3DEP: exact elevation above sea level in feet and meters, terrain classification

♥

Tract-Level Health (CDC PLACES)

CDC: obesity, diabetes, smoking, depression, high blood pressure rates at the census tract level — more precise than county averages

Now live — 4 additional Census sources

Demographics (income, home values, rent, population) Broadband availability % Commute & transit mode share Owner-occupied housing %

Growth & Scale tiers — 3 premium sources

Walk Score (official) HMDA mortgage data NOAA 30-yr climate normals

Who uses it

Built for property, insurance, and relocation

One call replaces five separate integrations.

Real estate

Property listing intelligence

Enrich every listing with flood risk, school district, neighborhood income, walkability, and nearby transit — without piecing together five APIs.

flood schools demographics walk_score nearby_places

Insurance

Underwriting risk data

Pull flood zone, disaster history, hazard risk, crime, and environmental exposure for any property address in a single underwriting call.

flood disaster_history hazards crime risk_score

Relocation

Neighborhood comparison

Use /v1/compare to rank up to five addresses across income, flood risk, schools, walkability, electricity rates, and more.

compare health utility_rates food_access broadband

PropTech / Mortgage

Due diligence automation

Batch enrich a portfolio of addresses for opportunity zone status, HPI trends, mortgage denial rates, and SVI scores in one request.

opportunity_zone house_price_index mortgage social_vulnerability

API reference

All endpoints

REST API over HTTPS. Authenticate with x-api-key header. All responses are JSON.

GET

/v1/enrich flagship

Full location intelligence — 25+ data sources for a single address. Returns flood, demographics, crime, schools, broadband, hazards, air quality, and more.

POST

/v1/batch

Enrich up to 100 addresses in one request (10 concurrent). Returns per-address results with status.

GET

/v1/compare

Compare 2–5 addresses side-by-side. Returns ranked outputs for risk, income, flood, walkability, transit, electricity, and more.

GET

/v1/validate

Fast USPS standardization — no enrichment. Returns standardized address, deliverability, coordinates, and parsed components. ~600ms.

POST

/v1/validate/batch

Validate up to 1,000 addresses. Synchronous for ≤50; async with job polling and webhook callback for larger sets.

GET

/v1/autocomplete

Address suggestions as the user types. Min 3 characters, returns up to 10 suggestions.

GET

/v1/reverse

Reverse geocode: lat/lon → address + full location context. Census Bureau primary, OpenStreetMap fallback.

Quick start

Three lines to enrich an address

# Full enrichment — 25+ sources
curl "https://addressapi.portofcams.com/v1/enrich?address=1600+Pennsylvania+Ave+NW,Washington+DC" \
  -H "x-api-key: YOUR_KEY"

# Compare two addresses side-by-side
curl "https://addressapi.portofcams.com/v1/compare?addresses=123+Main+St+Austin+TX,456+Oak+Ave+Dallas+TX" \
  -H "x-api-key: YOUR_KEY"

# Fast validation only (no enrichment)
curl "https://addressapi.portofcams.com/v1/validate?address=1600+Pennsylvania+Ave+NW,Washington+DC" \
  -H "x-api-key: YOUR_KEY"

// Full enrichment
const res = await fetch(
  'https://addressapi.portofcams.com/v1/enrich?address=1600+Pennsylvania+Ave+NW,Washington+DC',
  { headers: { 'x-api-key': 'YOUR_KEY' } }
);
const data = await res.json();

console.log(data.flood.risk_level);        // "Minimal"
console.log(data.demographics.median_household_income); // 58400
console.log(data.risk_score.overall_score); // 72

import requests

data = requests.get(
    "https://addressapi.portofcams.com/v1/enrich",
    params={"address": "1600 Pennsylvania Ave NW, Washington DC"},
    headers={"x-api-key": "YOUR_KEY"}
).json()

print(data["flood"]["risk_level"])                    # Minimal
print(data["demographics"]["median_household_income"])  # 58400
print(data["risk_score"]["overall_score"])             # 72

Pricing

Start free, scale when ready

Every plan includes the full enrichment endpoint. No contracts, cancel anytime.

Free

100 lookups / month

Full /v1/enrich endpoint
Validate + reverse
2 req/sec
1 API key

Location Intelligencefor any US Address