ZIP Code Tabulation Areas (ZCTAs)

ZCTAs are the Census Bureau's generalized representations of U.S. Postal Service ZIP Codes, created by aggregating census blocks.

STATS offers maps of Indiana by region, congressional district or statewide.

Maps By Region

These easy-to-use and view ZCTA outline maps, updated with TIGER/Line 2006 data, in PDF format show interstates, as well as cities and towns. Select a region using the following selection box.

Counties in Each Regional Map

Northwest

Benton, Carroll, Cass, Fulton, Jasper, La Porte, Lake, Marshall, Newton, Porter, Pulaski, St. Joseph, Starke, White

Northeast

Adams, Allen, Blackford, De Kalb, Elkhart, Grant, Huntington, Jay, Kosciusko, Lagrange, Miami, Noble, Steuben, Wabash, Wells, Whitley

East Central

Decatur, Delaware, Fayette, Franklin, Hamilton, Hancock, Henry, Howard, Johnson, Madison, Marion, Randolph, Rush, Shelby, Tipton, Union, Wayne

West Central

Boone, Clay, Clinton, Fountain, Hendricks, Montgomery, Morgan, Owen, Parke, Putnam, Tippecanoe, Vermillion, Vigo, Warren

Southwest

Crawford, Daviess, Dubois, Gibson, Greene, Knox, Lawrence, Martin, Monroe, Orange, Perry, Pike, Posey, Spencer, Sullivan, Vanderburgh, Warrick

Southeast

Bartholomew, Brown, Clark, Dearborn, Floyd, Harrison, Jackson, Jefferson, Jennings, Ohio, Ripley, Scott, Switzerland, Washington

Maps By U.S. Congressional District

See which ZCTAs fall within the individual congressional districts by selecting a district from the map below. Want to download all the districts at once? Click here to access a pdf with all 9 districts (1 MB).

Statewide Maps

• Interactive Statewide Boundary Map: Updated with TIGER/Line 2006 data
• ZIP Code - Township Interactive: Updated with TIGER/Line 2006 data
• Statewide Map of ZCTAs with County Boundaries
• Three-Digit ZCTA Map

Note from the Bureau about ZCTAs ending with XX or HH

The three-digit ZCTA code and an "XX" suffix are applied to a large land area (generally larger than 25 square miles) where we had insufficient information to determine the five-digit codes. The USPS may not provide five-digit ZIP Code delivery service in this area. These are generally rural areas with little settlement; for example, parks, forest lands, and desert and mountainous areas. Smaller areas were generally absorbed into adjacent five-digit ZCTAs, but for larger areas, we did not want to overextend the surrounding five-digit ZCTAs.

The requirements for ZCTA delineation state that all census blocks receive a ZCTA code. Because large water features may border many five-digit ZCTAs, it would be difficult to divide up the water features and assign the parts to the five-digit ZCTAs on the land. Furthermore, any attempt to add these water features to land-based ZCTAs, would greatly distort the size and shape of the land ZCTAs, particularly in coastal areas. To avoid these problems, such water features receive ZCTA codes ending in "HH" (special code for hydrographic features).