Loading ZIP outlines…
Circle is measured from where you first press; Lasso follows your outline. The switch under Add and Remove decides which ZIPs count: Touching (any ZIP the shape touches), Center in (the ZIP's center point is inside) or Fully in (the whole ZIP is inside). For an exact distance, type a ZIP above and press Radius.
To leave out PO Box or single-organization ZIPs (a company, university or government office), or to keep only those, uncheck the others under ZIP types in the list panel.
The dotted grip on each box moves it: click or tap the grip to fold the box away, drag it to put the box somewhere else.
About ZipZoomer: what it does, the data it uses, and answers to common questions.
ZipZoomer finds every ZIP code within 100 miles of any U.S. ZIP code, shows them on a map with their real outlines, and gives you the list to copy or download as a CSV file. A hundred miles is roughly a two-hour drive and covers about 31,416 square miles, about the size of South Carolina. Around New York a 100-mile circle holds more than 2,300 ZIP codes in five states; around a small town in eastern Montana it holds about 50. Over four out of five ZIP codes (82.7%) have a 100-mile circle that crosses a state line.
The map above opens on a 100-mile radius around 59301 in Miles City, MT, which takes 54 ZIP codes with about 47,000 people in Montana, North Dakota, South Dakota and Wyoming.
From 54 around 59301 in Miles City, MT to 2,308 around 10001 in New York, NY:
| Place | Start | ZIPs | People |
|---|---|---|---|
| New York, NY 5 states: CT MA NJ NY PA | 10001 | 2,308 | 31.0 million |
| Los Angeles, CA | 90012 | 974 | 19.8 million |
| Chicago, IL 4 states: IL IN MI WI | 60601 | 952 | 13.3 million |
| Houston, TX | 77002 | 529 | 8.2 million |
| Phoenix, AZ | 85004 | 282 | 5.3 million |
| Liberal, KS 4 states: CO KS OK TX | 67901 | 101 | 236,000 |
| Scottsbluff, NE 4 states: CO NE SD WY | 69361 | 99 | 209,000 |
| Miles City, MT 4 states: MT ND SD WY | 59301 | 54 | 47,000 |
A 100-mile list can run to thousands of ZIP codes. The map shows them all, and Download file saves the whole list at once; new-line separators paste straight into a spreadsheet column. Share link puts the list in a link you can send to a colleague.
Over all 41,063 ZIP codes, the median count within 100 miles is 600; the largest is 2,518, around 07890 in Branchville, NJ. 100.0% have another ZIP code within 100 miles, and for 82.7% the 100-mile list spans a state line.
A hundred miles here is a straight line between center points (where each ZIP code’s number or dot sits on the map), not driving distance. Population is from the 2020 Census.
Yes, up to 200 miles (322 kilometers) in the radius card; the card says so if you type more. Beyond that, draw several circles or a lasso and add them together, or search for a state or county and add its ZIP codes. A 200-mile circle around a big city can hold several thousand ZIP codes.
Around 10001 in New York it reaches five (New York, New Jersey, Connecticut, Pennsylvania and Massachusetts); around 59301 in Miles City, Montana, four (Montana, North Dakota, South Dakota and Wyoming); around 90012 in Los Angeles, only California.
The app’s default rule, Touching, also takes ZIP codes the circle only partly covers; the table and the map above use Center in.
Yes. Choose Circle, hold SHIFT and drag outward from the spot until the readout shows 100 mi; on a phone, hold Add with one finger and draw with another.
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