Demographic Enrichment API for county and state lookup, search, and coordinate enrichment. Attribution: U.S. Census Bureau Population Estimates Program data and U.S. Census Bureau TIGER/Line county boundaries; this product is not endorsed or certified by the Census Bureau.
{
"input": {
"lat": 34.0522,
"lon": -118.2437
},
"enrichment": {
"county_fips": "06037",
"county_name": "Los Angeles County",
"state_name": "California",
"population": 9757179,
"median_household_income": "80794",
"poverty_rate": "13.1",
"unemployment_rate": "5.4"
},
"attribution": [
{
"source": "U.S. Census Bureau Population Estimates Program",
"dataset": "County Population Totals: 2020-2024",
"license": "U.S. federal government data",
"url": "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/totals/",
"notice": "This product uses U.S. Census Bureau data but is not endorsed or certified by the Census Bureau."
},
{
"source": "U.S. Census Bureau TIGER/Line",
"dataset": "TIGER/Line County Boundaries 2024",
"license": "Public domain / U.S. federal government work",
"url": "https://www2.census.gov/geo/tiger/TIGER2024/COUNTY/",
"notice": "Derived from U.S. Census Bureau TIGER/Line boundary data; not endorsed or certified by the Census Bureau."
}
]
}
curl --location --request GET 'https://zylalabs.com/api/13401/demographics+enrichment+api/28740/data+enhancement?lat=34.0522&lon=-118.2437' --header 'Authorization: Bearer YOUR_API_KEY'
{
"count": 58,
"results": [
{
"county_fips": "06037",
"county_name": "Los Angeles County",
"state_name": "California",
"population": 9757179,
"median_household_income": "80794",
"poverty_rate": "13.1",
"unemployment_rate": "5.4"
},
{
"county_fips": "06073",
"county_name": "San Diego County",
"state_name": "California",
"population": 3298799,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06059",
"county_name": "Orange County",
"state_name": "California",
"population": 3170435,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06065",
"county_name": "Riverside County",
"state_name": "California",
"population": 2529933,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06071",
"county_name": "San Bernardino County",
"state_name": "California",
"population": 2214281,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06085",
"county_name": "Santa Clara County",
"state_name": "California",
"population": 1926325,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06001",
"county_name": "Alameda County",
"state_name": "California",
"population": 1649060,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06067",
"county_name": "Sacramento County",
"state_name": "California",
"population": 1611231,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06013",
"county_name": "Contra Costa County",
"state_name": "California",
"population": 1172607,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06019",
"county_name": "Fresno County",
"state_name": "California",
"population": 1024125,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06029",
"county_name": "Kern County",
"state_name": "California",
"population": 922529,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06111",
"county_name": "Ventura County",
"state_name": "California",
"population": 835427,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06075",
"county_name": "San Francisco County",
"state_name": "California",
"population": 827526,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06077",
"county_name": "San Joaquin County",
"state_name": "California",
"population": 816108,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06081",
"county_name": "San Mateo County",
"state_name": "California",
"population": 742893,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06099",
"county_name": "Stanislaus County",
"state_name": "California",
"population": 556972,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06097",
"county_name": "Sonoma County",
"state_name": "California",
"population": 485375,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06107",
"county_name": "Tulare County",
"state_name": "California",
"population": 483546,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06095",
"county_name": "Solano County",
"state_name": "California",
"population": 455101,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06083",
"county_name": "Santa Barbara County",
"state_name": "California",
"population": 444500,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06053",
"county_name": "Monterey County",
"state_name": "California",
"population": 436251,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06061",
"county_name": "Placer County",
"state_name": "California",
"population": 433822,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06047",
"county_name": "Merced County",
"state_name": "California",
"population": 296774,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06079",
"county_name": "San Luis Obispo County",
"state_name": "California",
"population": 281843,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06087",
"county_name": "Santa Cruz County",
"state_name": "California",
"population": 262406,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06041",
"county_name": "Marin County",
"state_name": "California",
"population": 256400,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06113",
"county_name": "Yolo County",
"state_name": "California",
"population": 225251,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06007",
"county_name": "Butte County",
"state_name": "California",
"population": 208334,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06017",
"county_name": "El Dorado County",
"state_name": "California",
"population": 192823,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06025",
"county_name": "Imperial County",
"state_name": "California",
"population": 181724,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06089",
"county_name": "Shasta County",
"state_name": "California",
"population": 181121,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
},
{
"county_fips": "06039",
"county_name": "Madera County",
"state_name": "California",
"population": 165432,
"median_household_income": null,
"poverty_rate": null,
"unemployment_rate": null
}
],
"_note": "Response truncated for documentation purposes"
}
curl --location --request GET 'https://zylalabs.com/api/13401/demographics+enrichment+api/28741/retrieve+counties?state_name=California&limit=100' --header 'Authorization: Bearer YOUR_API_KEY'
{
"query": "Los Angeles",
"count": 1,
"results": [
{
"county_fips": "06037",
"county_name": "Los Angeles County",
"state_name": "California",
"population": 9757179,
"median_household_income": "80794",
"poverty_rate": "13.1",
"unemployment_rate": "5.4"
}
],
"attribution": [
{
"source": "U.S. Census Bureau Population Estimates Program",
"dataset": "County Population Totals: 2020-2024",
"license": "U.S. federal government data",
"url": "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/totals/",
"notice": "This product uses U.S. Census Bureau data but is not endorsed or certified by the Census Bureau."
},
{
"source": "U.S. Census Bureau TIGER/Line",
"dataset": "TIGER/Line County Boundaries 2024",
"license": "Public domain / U.S. federal government work",
"url": "https://www2.census.gov/geo/tiger/TIGER2024/COUNTY/",
"notice": "Derived from U.S. Census Bureau TIGER/Line boundary data; not endorsed or certified by the Census Bureau."
}
]
}
curl --location --request GET 'https://zylalabs.com/api/13401/demographics+enrichment+api/28742/search+regions?query=Los Angeles&limit=10' --header 'Authorization: Bearer YOUR_API_KEY'
{
"count": 3,
"results": [
{
"state_name": "California",
"county_count": 58,
"population_total": "39431263",
"avg_median_household_income": "80794.000000000000",
"avg_poverty_rate": "13.1000000000000000",
"avg_unemployment_rate": "5.4000000000000000"
},
{
"state_name": "Texas",
"county_count": 254,
"population_total": "31290831",
"avg_median_household_income": null,
"avg_poverty_rate": null,
"avg_unemployment_rate": null
},
{
"state_name": "Florida",
"county_count": 67,
"population_total": "23372215",
"avg_median_household_income": null,
"avg_poverty_rate": null,
"avg_unemployment_rate": null
}
],
"attribution": [
{
"source": "U.S. Census Bureau Population Estimates Program",
"dataset": "County Population Totals: 2020-2024",
"license": "U.S. federal government data",
"url": "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/totals/",
"notice": "This product uses U.S. Census Bureau data but is not endorsed or certified by the Census Bureau."
},
{
"source": "U.S. Census Bureau TIGER/Line",
"dataset": "TIGER/Line County Boundaries 2024",
"license": "Public domain / U.S. federal government work",
"url": "https://www2.census.gov/geo/tiger/TIGER2024/COUNTY/",
"notice": "Derived from U.S. Census Bureau TIGER/Line boundary data; not endorsed or certified by the Census Bureau."
}
]
}
curl --location --request GET 'https://zylalabs.com/api/13401/demographics+enrichment+api/28743/region+overviews?limit=3' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Demographics Enrichment API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
|
Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
|
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
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Demographic Enrichment API for county and state lookup, search, and coordinate enrichment. Attribution: U.S. Census Bureau Population Estimates Program data and U.S. Census Bureau TIGER/Line county boundaries; this product is not endorsed or certified by the Census Bureau.
Each endpoint returns demographic, economic, and geographic data. For example, the "County statistics by FIPS" endpoint provides metrics like population size, income levels, and unemployment rates, while the "Data Enhancement" endpoint enriches datasets with contextual information.
Key fields include county FIPS codes, county names, state names, population totals, median household income, poverty rates, and unemployment rates. These fields help users analyze demographic and economic conditions effectively.
The returned data is structured in JSON format, organized into objects that include input parameters and enrichment results. Each response typically contains fields for demographic statistics, attribution sources, and metadata.
Information varies by endpoint: "County statistics by FIPS" provides demographic and economic data, "Retrieve counties" lists counties with metadata, and "Region overviews" offers summaries of demographic and economic indicators for specific regions.
Parameters vary by endpoint. For example, the "Search regions" endpoint allows queries based on region names or attributes, while "County statistics by FIPS" requires a specific FIPS code to retrieve data for that county.
Response data is organized into structured JSON objects. Each object contains relevant statistics and metadata, such as population totals and economic indicators, making it easy to parse and utilize in applications.
The data is sourced from the U.S. Census Bureau Population Estimates Program and TIGER/Line county boundaries. These sources ensure the data is reliable, though the API is not endorsed or certified by the Census Bureau.
Typical use cases include urban planning, market analysis, academic research, and enhancing customer profiles for targeted marketing. The data supports informed decision-making across various sectors by providing critical demographic insights.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
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The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
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You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
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