ZIP Codes in Indiana
Indiana's ZIP codes cover a state built around a single dominant capital city - Indianapolis sits almost exactly at the geographic center of the state, and its metro area accounts for a substantial share of Indiana's roughly 6.8 million residents. Beyond the capital, Indiana's population spreads across a mix of mid-size industrial cities, university towns, and farmland that stretches toward the Illinois and Ohio borders.
How ZIP Codes Are Organized Across the State
Indiana's ZIP codes fall within the 46000–47999 range under the USPS system. Indianapolis and the surrounding Marion County area occupy the lower end around 462xx, Fort Wayne, in the northeast, sits near 468xx, and southern Indiana - including Evansville along the Ohio River - carries codes closer to 477xx.
Indiana's Major Metro Areas by Population
The chart below shows how population concentrates around Indianapolis, with Fort Wayne and Evansville trailing well behind as the state's next-largest metro areas.
Indianapolis's ZIP codes cover Indiana's capital and largest city, well known for hosting the Indianapolis 500 and serving as a major logistics hub given its central location within the eastern half of the country. Fort Wayne, in the northeast, has a manufacturing-heavy economy and carries codes that reflect its role as the state's second-largest city. For a broader comparison, our full US ZIP code directory shows how Indiana's ranges fit alongside every other state.
Northern Indiana and South Bend
Northern Indiana, anchored by South Bend and home to the University of Notre Dame, sits close to the border with Michigan, and this region shares a similar industrial and Great Lakes-adjacent character with its northern neighbor. The area's economy has shifted significantly over the past several decades from heavy manufacturing toward education, healthcare, and logistics, a transition reflected in how the region's ZIP codes have grown or shrunk in population over time.
Southern Indiana and the Ohio River Valley
Southern Indiana, along the Ohio River near Evansville, has a noticeably different character from the flatter, more agricultural central part of the state - the terrain grows hillier as it approaches the river, similar to parts of southern Ohio and Kentucky just across the water. ZIP codes here reflect a mix of river commerce, manufacturing, and rural farmland, with Evansville serving as the region's clear economic hub.
Why ZIP Codes Matter Beyond Mail
In Indiana, ZIP codes play a significant role in the manufacturing and logistics sectors, given the state's central location and extensive interstate highway network that makes it a preferred hub for national distribution centers. Real estate listings around Indianapolis and Fort Wayne use ZIP-level data to signal proximity to major employers and school districts. And university towns like Bloomington and South Bend see distinct seasonal population patterns tied to the academic calendar that show up clearly in ZIP-level demographic data.
Border Regions and Neighboring States
Indiana shares borders with four states. To the west, the line with Illinois connects into the broader Chicago metro area near the northwestern corner of the state. To the north, the border with Michigan runs along Lake Michigan's southern shore. And to the south, the Ohio River separates Indiana from Kentucky, a natural boundary that has shaped trade and settlement patterns for centuries.
Finding the Right ZIP Code
Use the list below to browse Indiana's ZIP codes by city, county, or population - sorted so the most populous areas surface first. Each entry links through to a detailed page with additional demographic data. If you're trying to identify the ZIP code for a specific address rather than browsing by city, the search tool at the top of this page will get you there faster than scrolling through the full list.
Frequently Asked Questions
How many ZIP codes does Indiana have?
Indiana has several hundred ZIP codes, concentrated most heavily around Indianapolis, with Fort Wayne and Evansville forming smaller secondary clusters.
What ZIP code range does Indiana use?
Indiana ZIP codes generally fall between 46000 and 47999, with Indianapolis toward the lower end and southern Indiana further along the range.
Which Indiana city has the most ZIP codes?
Indianapolis, as the state's capital and largest city by a wide margin, accounts for the greatest number of individual ZIP codes.
Can I look up an Indiana ZIP code by city name?
Yes, use the search tool on this page or browse the full list below, which is organized by city and sorted by population.
Whether you're relocating to the Indianapolis metro area, researching property near South Bend or Evansville, or simply trying to pin down the right ZIP code for a specific Indiana address, the data below covers every corner of the state.