Free US ZIP Code Database as CSV(coolthingoftheday.blogspot.com)
coolthingoftheday.blogspot.com
Free US ZIP Code Database as CSV
http://coolthingoftheday.blogspot.com/2008/04/free-us-zip-code-database-as-csv.html
14 comments
The census will generate that database for you:
Go to http://factfinder.census.gov/servlet/DCGeoSelectServlet?ds_n...
Click "All 5-Digit ZIP Code Tabulation Areas"
Click "GO"
Click "P1. Total Population"
Click "Add"
Click "Next"
Click "Start Download"
Go to http://factfinder.census.gov/servlet/DCGeoSelectServlet?ds_n...
Click "All 5-Digit ZIP Code Tabulation Areas"
Click "GO"
Click "P1. Total Population"
Click "Add"
Click "Next"
Click "Start Download"
> don't spread it around
Why not? Is it not public domain, or are you worried about the load on your server, or what?
The latter. You're free to upload it elsewhere and spread it, however.
That seems useful, but it's more aggregated data (by state & region, not zip).
bzip2 it. It will slash the size to a fraction of its current size.
http://indistinct.org/5-digit%20Commercial.csv.bz2
A small mirror.
A small mirror.
[deleted]
The google maps API also has pretty good geocoding, for free. You can give it a location, and it will tell you not just lat/lng, but also how specific that location is. (Is it a zip code? A city name? An intersection? A precise address?)
Does anyone know a good resource for searching within an X mile radius given a zipcode?
Download the database I posted in my other comment here, and try this SQL statement:
SELECT z.ZIPcode, (sqrt((z.latitude-z2.latitude)*(z.latitude-z2.latitude)+(z.longtitude-z2.longtitude)*(z.longtitude-z2.longtitude)))) AS dist
FROM `zip` AS `z`, `zip` AS `z2`
WHERE `z2`.`ZIPcode = 'YOURZIPCODE'
ORDER BY dist LIMIT 10
mySQL 'SELECT zip FROM '.insert table here.' WHERE (POW((69.1(tablelongitude-"'.$obj->longitude.'")cos('.$obj->latitude.'/57.3)),"2")+POW((69.1(tablelatitude-"'.$obj->latitude.'")),"2"))<('.$radius.''.$radius.') ';
You need the origin long and lat, and the radius (distance), but the nice thing is the database does all the radius distance calculations internally without passing it to the scripting language, in a fraction of second depending on the server and DB. This is the query I used in http://mybandsupport.com. You can see the result by entering the zipcode in the splash screen and clicking search. The function takes your zip, gets the long and lat, then the DB compares it to every zip's (4500) long and lat to find every zip within 20 miles.
Just a note: comparing every zip code and its distance and recording the distance to a DB would create upwards of 12 million records. This might be the breaking point for some.... I was thinking about doing it myself. Once I worked out the numbers I backed away.
If you know the origin and destination long and lat this works well to calc distance. $dist = sin(deg2rad($this->lat1)) * sin(deg2rad($this->lat2)) + cos(deg2rad($this->lat1)) * cos(deg2rad($this->lat2)) * cos(deg2rad($theta));
Just a note: comparing every zip code and its distance and recording the distance to a DB would create upwards of 12 million records. This might be the breaking point for some.... I was thinking about doing it myself. Once I worked out the numbers I backed away.
If you know the origin and destination long and lat this works well to calc distance. $dist = sin(deg2rad($this->lat1)) * sin(deg2rad($this->lat2)) + cos(deg2rad($this->lat1)) * cos(deg2rad($this->lat2)) * cos(deg2rad($theta));
First, convert your locations and zip codes to latitude and longitude. Then use something like this:
http://jan.ucc.nau.edu/~cvm/latlon_formula.html
http://therobert.org/stuff/misc/5-digit%20Commercial.csv
7.7MB | February 2008
I need a database that shows the population in each zip code, too. If any good Samaritan can share, that would be great.