Zip Code To County Mapping

As the most granular boundary dataset, it allows a more exact analysis of business data. Keep in mind that there may be multiple rows in the data set for a. Zip code of address city;

Find the zip code, county, and +4 of any u.s. To find the county for a zip, type the zip code in the 'search places' box above this zip code county finder map tool, then check the 'also show county lines' box in the lower left corner of the map. Zip code map boundary data.

Find zip codes by address, zip codes by city, or zip codes by state.

It gets even more complicated when trying to assign a zip code to a specific county (as much as 25% cross county lines), congressional district, metro area, time zone, area code. Users can easily view the boundaries of each zip code and the state as a whole. We see maps of zip codes in telephone books and from commercial vendors that make us think of them as spatially defined areas with precise boundaries, similar to counties. 35 years of experience publishing zip code maps;