- Type a comma-separated list of ZIP Codes into the box below OR - Select ZIP Codes by drawing on the map above: - 1. Click the Drawing Tools button on the left side of the map, then draw an area (any ZIP Code you touch will be included). - 2. Double-click to finish drawing, and the ZIP Codes will automatically appear in the box below.
1. In Google Sheets, create a spreadsheet with the first 3 columns in this order: ZIPCode, Data*, and Color - TIP: You can use either 5-digit ZIP Codes or 3-digit ZIP Codes (but not a combination of the two) - TIP: If you don't have a Google Sheet, create one by importing from Excel or a .csv file 2. Publish your spreadsheet using the default values in the File > Publish to the Web box. Click Publish, then close the Publish box. 3. Copy the URL from your web browser address bar while viewing the Google Sheet (see example URL below) - TIP: DO NOT copy the link from the Publish to the Web box 4. Paste the URL into the box below:
1. In Google Sheets, create a spreadsheet with 4 columns in this order: County, StateAbbrev, Data* and Color - TIP: If you don't have a Google Sheet, create one by importing from Excel or a .csv file 2. Publish your spreadsheet using the default values in the File > Publish to the Web box. Click Publish, then close the Publish box. 3. Copy the URL from your web browser address bar while viewing the Google Sheet (see example URL below) - TIP: DO NOT copy the link from the Publish to the Web box 4. Paste the URL into the box below:
Ready! Click link at left to view your map. You can bookmark the link or embed the link on another website!
Historical U.S. Counties
View historical counties on Google Maps with this free tool
Why would you want to see historical Google Maps? County boundaries change over time
and this tool built on Google Maps will help you make sure you’re searching in the correct county for the place and
historical years you’re researching.
Watch a video walkthrough of the Historical U.S. Counties Map tool and Auto-Checker
QUICK TIPS FOR USING THIS HISTORICAL U.S. COUNTIES TOOL:
Type any PRESENT-day place or address in the “Search places” box above the map* OR: Zoom into
your place of interest on the map
Type any HISTORIC date or year in the “As of date” box and click Go! The date must be in the format
M/D/YYYY or can be just a 4-digit year. Historical county boundaries will draw, and an information pane
about the county of interest will appear at the bottom of the map. The information pane lists the historical
county name at the blue dot, and provides details on the latest boundary change as of the date you typed,
including reference to the particular statute that triggered the change. The latitude and longitude for the blue
dot is also displayed.**
Check the “Show historical county labels” checkbox in the lower left corner of the map to see the names
of the historical counties on the map
Optionally, check the “Show county chronology if this place…” checkbox in the lower left corner of
the map to see a complete listing of every county boundary change for your chosen location from the date you
typed back in time to original county formation
Optionally, check the “Also show present-day county lines” checkbox in the lower left corner of the map
to see present-day county lines (thin red lines) overlaid on top of historical county lines (thicker brown
Optionally, check the “Also show US townships” checkbox in the lower left corner of the map to see
present-day township boundaries (thin dark orange lines)
Click the “⊕ Locate” button in the upper right corner of the map to use your current location***
Subscribe in the top header to receive notification of tool updates and usage tips
* You can also type in GPS coordinates in decimal degrees into the Search places box. For example, type
-105.25, 40 for Boulder, Colorado. ** All information is reported based on the location of the blue dot on the map; to move the blue dot, click the map *** The
“Locate” button will be more accurate on smartphones and other devices containing a GPS; desktop browsers typically
show an approximate location
FAQs for ‘Historical U.S. Counties’
How do you see Google Maps with historical county lines? (This is often the tool people are searching for when
they search for Randy Majors maps) Just follow the quick steps above and you will see the historical county
boundary lines for anywhere in the U.S. displayed on a fully interactive Google Map.
Answer questions such
as: – What county was this present-day address located in as of this historical date? – What county was my
ancestor’s farm in as of this historical date? – Which county’s archives or court house might have records for
the time period I am researching? – What county were these GPS coordinates located in at this historical date
(see * above)? Plus many other topics where knowing historical counties may be important, such as education,
genealogy and historical research
Looking for PRESENT-day county boundaries on Google Maps? Here it is: County Lines tool.
COVERAGE NOTES: – Coverage includes all 50 US states, from as early as 3/4/1629 through 12/31/2000.
For present-day county lines use the County Lines on Google
The Search places box uses a standard Google Maps geocoding engine, therefore you can type PRESENT-day street
addresses, road names, points of interest, and GPS coordinates (see * above) to see what county that location is
NEW! Some counties or regions were claimed by more than one jurisdiction in some historic years. When
this is the case, an “Overlapping jurisdiction” button will appear at the bottom of the map enabling you to toggle
to the other jurisdiction’s information.
The map layers from which this information is extracted are very large, so it may take several seconds to finish
Note that typing an address will zoom in the map very close, whereas typing a city or county by itself will show
you a map with a wider view
Disclaimer: While the number of decimals in the latitude and longitude displayed for the map marker imply a
positional accuracy of within a few feet, note that Google Maps is not inherently that accurate, and therefore this tool should not be used for legal purposes or anything beyond
SOURCES: – Atlas of Historical County Boundaries, a
project of The Dr. William M. Scholl Center for American History and Culture at The Newberry Library in Chicago,
Illinois. The information is included in this tool under the Creative Commons license shown on the bottom of the
linked page. – US Census Bureau
check out the AncestorSearch using Google Custom
Search tool on this website to build a Google search that is optimized to find web pages mentioning your
ancestors! The search returns a more focused set of results by using advanced Google search techniques including
exact phrases, forward and reverse name order, alternate name spellings, logical operators, and so on.