JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/api-ninjas-com/json-schema/api-ninjas-com-zip-code-response-schema.json",
"title": "ZipCodeResponse",
"x-generated": "2026-10-30",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/api-ninjas-com-openapi.json#/components/schemas/ZipCodeResponse",
"type": "array",
"items": {
"type": "object",
"properties": {
"zip_code": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"city": {
"type": "string"
},
"state": {
"type": "string"
},
"county": {
"type": "string"
},
"timezone": {
"type": "string"
},
"area_codes": {
"type": "array",
"items": {
"type": "string"
}
},
"country": {
"type": "string"
},
"lat": {
"type": "string"
},
"lon": {
"type": "string"
},
"population": {
"type": [
"integer",
"null"
],
"description": "Population of the nearest populated place to the ZIP centroid. Premium field: the Free tier receives a notice string in place of the value."
},
"elevation_m": {
"type": [
"integer",
"null"
],
"description": "Elevation in metres of the nearest populated place. Premium field: the Free tier receives a notice string in place of the value."
},
"climate_zone": {
"type": [
"string",
"null"
],
"description": "Köppen-Geiger climate classification code, e.g. Csa. Premium field: the Free tier receives a notice string in place of the value."
},
"urbanisation": {
"type": [
"string",
"null"
],
"description": "Degree of urbanisation, from URBAN_CENTRE to VERY_LOW_DENSITY_RURAL. Premium field: the Free tier receives a notice string in place of the value."
},
"nearest_airport": {
"type": [
"object",
"null"
],
"description": "Nearest IATA-coded airport with distance and bearing. Premium field: the Free tier receives a notice string in place of the value.",
"properties": {
"name": {
"type": "string"
},
"iata": {
"type": "string"
},
"icao": {
"type": "string"
},
"country": {
"type": "string"
},
"municipality": {
"type": "string"
},
"type": {
"type": "string"
},
"scheduled_service": {
"type": "boolean"
},
"latitude": {
"type": "number"
},
"longitude": {
"type": "number"
},
"elevation_m": {
"type": [
"integer",
"null"
]
},
"distance_km": {
"type": "number"
},
"bearing_degrees": {
"type": "number"
}
}
},
"zcta": {
"type": [
"string",
"null"
],
"description": "ZIP Code Tabulation Area."
},
"land_area_sqmi": {
"type": [
"number",
"null"
],
"description": "Land area of the ZCTA in square miles."
},
"water_area_sqmi": {
"type": [
"number",
"null"
],
"description": "Water area of the ZCTA in square miles."
},
"state_fips": {
"type": [
"string",
"null"
],
"description": "2-digit state FIPS code."
},
"county_fips": {
"type": [
"string",
"null"
],
"description": "5-digit FIPS code of the predominant county."
},
"tract_fips": {
"type": [
"string",
"null"
],
"description": "11-digit FIPS code of the predominant Census tract."
},
"counties": {
"type": "array",
"items": {
"type": "object",
"properties": {
"fips": {
"type": "string"
},
"name": {
"type": "string"
},
"land_share": {
"type": "number",
"description": "Share of the ZIP Code’s land area falling in this area."
}
}
},
"description": "Every county the ZIP Code overlaps. ~30% span more than one."
},
"cbsa_code": {
"type": [
"string",
"null"
],
"description": "Core Based Statistical Area code (OMB 2023)."
},
"cbsa_title": {
"type": [
"string",
"null"
],
"description": "CBSA name."
},
"cbsa_type": {
"type": [
"string",
"null"
],
"description": "Either metro or micro.",
"enum": [
"metro",
"micro"
]
},
"csa_code": {
"type": [
"string",
"null"
],
"description": "Combined Statistical Area code."
},
"csa_title": {
"type": [
"string",
"null"
],
"description": "CSA name."
},
"timezones": {
"type": "array",
"description": "IANA timezones covering the ZIP Code. More than one means the county is split.",
"items": {
"type": "string"
}
},
"observes_dst": {
"type": [
"boolean",
"null"
],
"description": "Whether daylight saving is observed."
},
"timezone_is_split": {
"type": [
"boolean",
"null"
],
"description": "True when the county is divided by a timezone or DST boundary."
},
"utc_offset_std": {
"type": [
"string",
"null"
],
"description": "Standard-time UTC offset."
},
"utc_offset_current": {
"type": [
"string",
"null"
],
"description": "UTC offset in effect now, resolved per request."
},
"is_dst_now": {
"type": [
"boolean",
"null"
],
"description": "Whether daylight saving is currently in effect."
},
"school_districts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"leaid": {
"type": "string"
},
"name": {
"type": "string"
},
"type": {
"type": "string"
},
"land_share": {
"type": "number",
"description": "Share of the ZIP Code’s land area falling in this area."
}
}
},
"description": "Every overlapping school district. 61% of ZIP Codes touch more than one."
},
"primary_school_district": {
"type": [
"string",
"null"
],
"description": "District covering the largest share."
},
"primary_school_district_leaid": {
"type": [
"string",
"null"
],
"description": "NCES LEAID of the primary district."
},
"congressional_districts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"district": {
"type": "string"
},
"name": {
"type": "string"
},
"land_share": {
"type": "number",
"description": "Share of the ZIP Code’s land area falling in this area."
}
}
},
"description": "Every overlapping congressional district. ~15% of ZIP Codes span more than one."
},
"congressional_district_vintage": {
"type": [
"string",
"null"
],
"description": "Which congressional boundary set the districts reflect."
},
"state_legislative_upper": {
"type": "array",
"items": {
"type": "object",
"properties": {
"district": {
"type": "string"
},
"name": {
"type": "string"
},
"land_share": {
"type": "number",
"description": "Share of the ZIP Code’s land area falling in this area."
}
}
}
},
"state_legislative_lower": {
"type": "array",
"items": {
"type": "object",
"properties": {
"district": {
"type": "string"
},
"name": {
"type": "string"
},
"land_share": {
"type": "number",
"description": "Share of the ZIP Code’s land area falling in this area."
}
}
},
"description": "State house districts. Nebraska is unicameral and returns none."
},
"demographics": {
"type": [
"object",
"null"
],
"description": "ACS 2020-2024 5-year estimates for the ZCTA.",
"properties": {
"population": {
"type": "integer"
},
"median_age": {
"type": "number"
},
"median_household_income": {
"type": [
"integer",
"null"
]
},
"per_capita_income": {
"type": [
"integer",
"null"
]
},
"median_home_value": {
"type": [
"integer",
"null"
]
},
"median_gross_rent": {
"type": [
"integer",
"null"
]
},
"housing_units": {
"type": "integer"
},
"owner_occupied_pct": {
"type": [
"number",
"null"
]
},
"poverty_rate": {
"type": [
"number",
"null"
]
},
"unemployment_rate": {
"type": [
"number",
"null"
]
},
"bachelors_or_higher_pct": {
"type": [
"number",
"null"
]
},
"mean_commute_minutes": {
"type": [
"number",
"null"
]
},
"estimate_flags": {
"type": "array",
"items": {
"type": "string"
},
"description": "Names any median that fell in an open-ended top or bottom category, where the value is the category bound rather than a true median."
}
}
}
}
}
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