美国邮政编码相关数据的免费下载源

如何解决美国邮政编码相关数据的免费下载源

我正在开展一个项目，试图为美国抓取 zillow 家庭数据，并将其与犯罪、就业和气候数据相结合。有谁知道我可以在哪里下载免费数据，最好是按邮政编码，否则按州和县或什至经纬度：

美国的所有邮政编码，最好有县和州

犯罪率（我认为 npr 有一个数据库可以做到这一点）

失业率

房屋规模和收入数据

气候数据、降雨量、每年的高低温...

带有地理地图边界的邮政编码，例如来自 google maps geocode api 的东西，即

https://maps.googleapis.com/maps/api/geocode/json?address=99501&key=YOUR_API_KEY

示例输出：

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "99501","short_name" : "99501","types" : [ "postal_code" ]
            },{
               "long_name" : "Anchorage","short_name" : "Anchorage","types" : [ "locality","political" ]
            },"types" : [ "administrative_area_level_2",{
               "long_name" : "Alaska","short_name" : "AK","types" : [ "administrative_area_level_1",{
               "long_name" : "United States","short_name" : "US","types" : [ "country","political" ]
            }
         ],"formatted_address" : "Anchorage,AK 99501,USA","geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 61.246127,"lng" : -149.7783468
               },"southwest" : {
                  "lat" : 61.19960589999999,"lng" : -149.9247561
               }
            },"location" : {
               "lat" : 61.2189229,"lng" : -149.8503728
            },"location_type" : "APPROXIMATE","viewport" : {
               "northeast" : {
                  "lat" : 61.246127,"lng" : -149.9247561
               }
            }
         },"place_id" : "ChIJH9xDEiSWyFYRzMdW-mWKwnk","types" : [ "postal_code" ]
      }
   ],"status" : "OK"
}

对于最后一个数据，我实际上只是在寻找具有 4 纬度长地图边界的邮政编码。