Radius map: draw a circle around a location
Search an address or click the map, then set a distance in miles or kilometers. Measure the area, find nearby cities and US ZIP areas, and export the results.
Choose a location and set a radius
Cities and US ZIP areas in this circle
New York, NY · 5 mi radius
Cities and towns
Finding cities inside your circle…
GeoNames places above 15,000 residents, plus capitals. Inclusion is based on each place's reference point, not its boundary. No population estimates. GeoNames · CC BY 4.0
US ZIP coverage
Finding intersecting ZIP areas…
2020 Census ZCTAs, marked fully or partly inside the circle. Distances are to ZIP area centroids, which can fall outside the circle. These simplified statistical areas are not official USPS delivery boundaries. About this data
What is a radius map?
A radius map shows all points within a set distance of a location. Use it to check coverage, search nearby areas or compare locations.
- Choose a centerSearch an address, city or postal code, enter coordinates, or click the map.
- Measure the area within a radiusSet a straight-line distance to see the circle, covered area and diameter update.
- Use the radius calculator to find area, diameter and circumference from a radius.
How to draw a radius on the map
Choose a center, set a distance, then view or export the results.
- 01
Choose a location
Search an address, city or postal code and select a result. You can also enter coordinates or click the map.
- 02
Set the radius
Enter a distance in miles or kilometers, use a preset, or drag the circle's edge.
- 03
View and export results
Check the area, nearby cities and US ZIP areas. Add more circles, download results or copy a map link.
When to use a radius map
Check nearby areas, plan delivery coverage or compare locations using the same distance.
Draw a circle around your workplace or another location to narrow your housing search.
Set a radius around your business to sketch a delivery zone. Check driving distances separately.
Add circles around different sites to see overlaps and gaps. Each circle has its own measurements.
Draw circles, find places and export results
Add multiple circles, choose units, list nearby cities and US ZIP areas, and save your map.
Multiple circles and concentric rings
Add up to 12 circles. Use presets or enter distances to add rings around the same center.
Miles and kilometers
Change units without changing the circle's size. Radii range from 100 meters to 1,000 kilometers.
US ZIP areas within a radius
Find ZIP areas fully or partly inside the circle. Show boundaries, copy codes or export CSV. Lookup supports radii up to 100 miles.
Map and data exports
Download a PNG map image, GeoJSON or KML polygons, or circle measurements as CSV. Export city and ZIP lists separately.
Cities within a radius
Find larger cities and towns inside the circle. Sort by name or distance, show them on the map, or download CSV.
Share and reopen maps
Copy a link to all your circles. Changes also save in this browser when local storage is available.
Circle limits, units and export formats
Compare up to 12 circles, switch between 2 distance units, and export maps in 4 formats.
12
Circles per map
Each has its own center, radius, name and color.
2
Distance units
Switch between miles and kilometers.
4
Map export formats
PNG, GeoJSON, KML and measurement CSV.
Radius map questions and answers
How to draw circles, read measurements and export results.
What is a radius map?
A radius map shows all points within a chosen straight-line distance of a location. A 5-mile radius extends 5 miles in every direction from the center. Use it to check coverage, compare locations or search nearby areas.
How do I draw a radius around an address or ZIP code?
Search an address, city or postal code and select a result. Enter a radius in miles or kilometers, or drag the circle's edge. You can also choose the center by clicking the map, entering coordinates or allowing device location.
Can I draw multiple circles on one map?
Yes. Add up to 12 circles with separate centers, radii, names and colors. Use presets or custom distances for concentric rings. Each circle stays editable. Areas are calculated separately; overlapping areas are not combined.
Does the circle show driving distance or travel time?
No. The radius measures straight-line distance along the Earth's surface. Roads, traffic and terrain affect travel distance and time. RadiusMap does not calculate routes or driving-time areas.
Which US ZIP areas appear in the results?
Results include 2020 Census ZIP Code Tabulation Areas (ZCTAs) that are fully or partly inside the circle. These approximate ZIP delivery areas and may omit some USPS ZIP codes. ZIP lookup supports radii up to 100 miles. Circle drawing works worldwide.
How do I export or share a map?
Use Export to download a PNG map image, GeoJSON or KML polygons, or circle measurements as CSV. Export city and ZIP lists from their result tables. Use Share map to copy a link to all circles. Anyone with the link can view the included locations.
Which cities appear in the results?
Results use GeoNames places above 15,000 residents and capitals whose reference points are inside the circle. Smaller places may be missing. View the nearest 500 results, show the nearest 100 on the map, or export all matches as CSV. City boundaries and population inside the circle are not calculated.
Is RadiusMap free, and do I need an account?
The map is free to use without an account. Circles save in this browser when local storage is available. Map tiles, location search and Census queries need an internet connection and rely on external services.
How are distance and area calculated?
RadiusMap uses a spherical Earth model. Area accounts for Earth curvature and is close to πr² for small circles. The map and geographic exports approximate circles with 180 segments. Use the measurements for planning, not surveying or navigation.
Create a radius map
Choose a location and set a distance to view its coverage. Free to use, with no account required.