Uscensusstats
API
<
/api/v1/2021/pop-estimate?apikey={key}

{ "success": true, "data": [ { "state_code": "40", "state": "Oklahoma", "total_population": "3986639" }, year:"2021" ] }

/api/v1/2019/pop-estimate?apikey={key}

{ "success": true, "data": [ { "state_code": "40", "state": "Oklahoma", "total_population": "3986639" }, year:"2019" ] }

/api/v1/2018/pop-estimate?apikey={key}

{ "success": true, "data": [ { "state_code": "40", "state": "Oklahoma", "total_population": "3986639" }, year:"2018" ] }

/api/v1/2017/pop-estimate?apikey={key}

{ "success": true, "data": [ { "state_code": "40", "state": "Oklahoma", "total_population": "3986639" }, year:"2017" ] }

/api/v1/2016/pop-estimate?apikey={key}

{ "success": true, "data": [ { "state_code": "40", "state": "Oklahoma", "total_population": "3986639" }, year:"2016" ] }

This product uses the Census Bureau Data API
but is not endorsed or certified by the Census Bureau