
Indiana’s Biggest & Smallest Zip Codes – Are You in One?
I bet you'll be surprised by the population of the largest and smallest zip codes in Indiana, and chances are you might not guess which city has the largest.
No matter where you live in the country, your town or area has its own zip code attached to it. These zip codes are a type of postal code used within the United States to help the United States Postal Service (USPS) route mail more efficiently. Indiana has a total of 786 active zip codes throughout the state. These zip codes range from 46001 to 47997. Some of these zip codes have a wide range of populations attached to them. That's what we are going to be talking about here. Do you think you know what the largest and smallest zip code in Indiana is? I'd be willing to bet that you might not. The smallest of which has a population of 202 people, and the largest has a whopping 78,767 people attached to it, according to World Population Review.

So, the question here is this: Do you live in the largest zip code in the state? Maybe the smallest? Let's take a look at the top ten largest and smallest zip codes in the state of Indiana to find out.
Top Ten Largest Zip Codes in Indiana
World Population Review broke down Indiana zip codes by population, and what you might think is the largest zip code in the state, isn't necessarily the case. Here are the top ten largest zip codes by population in Indiana:
Largest Zip Codes in Indiana
Gallery Credit: Travis Sams
So, as you can see, West Lafayette's 47906 zip code is the biggest in Indiana for 2025. Was that surprising? I would have guessed Indianapolis because it is the largest city in Indiana. However, Indy is broken down into multiple zip codes, so that explains why it wasn't number one on the list.
Top Ten Smallest Zip Codes in Indiana
Once again, let's look at the data from World Population Review to discover the ten smallest zip codes in Indiana by population. There's quite a big difference in numbers compared to the largest zip codes. Here's a look at the smallest zip codes in descending order:
Smallest Zip Codes in Indiana
Gallery Credit: Travis Sams
See, that's a pretty big drop in numbers, isn't it? You can learn more, and find out where your Indiana zip code landed on the list by clicking here.
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