Data USA API

datausa.io · Government

Government No Auth Free & Open Demographics US Census Economics

US Census and economic data visualized — population, wages, education, employment, and housing for states, cities, counties, and industries. Free, no API key.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Get population data

Get current population for all US states.

https://datausa.io/api/data?year=latest&measures=Population&drilldowns=State

Hover any highlighted part to learn what it does

curl -X GET "https://datausa.io/api/data?year=latest&measures=Population&drilldowns=State"

import requests
params = {
    "year": "latest",
    "measures": "Population",
    "drilldowns": "State"
}
response = requests.get(
    "https://datausa.io/api/data",
    params=params,
)
print(response.json())

const url = new URL('https://datausa.io/api/data');
url.searchParams.set('year', 'latest');
url.searchParams.set('measures', 'Population');
url.searchParams.set('drilldowns', 'State');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
	"net/url"
)

func main() {
	baseURL, _ := url.Parse("https://datausa.io/api/data")
	q := baseURL.Query()
	q.Set("year", "latest")
	q.Set("measures", "Population")
	q.Set("drilldowns", "State")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://datausa.io/api/data")
uri.query = URI.encode_www_form({
  "year" => "latest",
  "measures" => "Population",
  "drilldowns" => "State"
})

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://datausa.io/api/data?" . http_build_query([
    "year" => "latest",
    "measures" => "Population",
    "drilldowns" => "State"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

No API key needed
State populations: GET /api/data?drilldowns=State&measures=Population&year=latest
City data: GET /api/data?drilldowns=Place&Geography=16000US0644000&measures=Average+Wage&year=latest (LA)
Industry wages: GET /api/data?drilldowns=Industry+Group&measures=Average+Wage&year=latest
More examples at datausa.io/about/api

Open documentation ↗