Free Map Tools & Blank Maps

What County Am I In?US

The county finder detects which US county you are currently located in using your device's GPS or an address search. It runs a point-in-polygon test against US Census Bureau boundary data loaded directly into your browser, so the result is instant — no server round-trip required. The tool also shows the county seat, population, area, and neighboring counties.

This is the most-searched geographic question in the US, with over 110,000 monthly searches. People need their county for jury duty forms, voter registration, property tax lookups, permit applications, and insurance quotes. The tool handles edge cases like independent cities (Virginia), parishes (Louisiana), and boroughs (Alaska) that don't follow the standard county model.

After detecting your county, the tool shows a detailed results card with demographic data, a map highlighting the county boundary, and links to neighboring counties. It works especially well near county borders, where many people genuinely don't know which jurisdiction they fall in.

What City Am I In?

The city detection tool identifies what city, town, or village you are currently in, using GPS or address search. It works worldwide — not just in the US — by querying the Nominatim reverse geocoder against OpenStreetMap data. The result includes the city name, administrative region (state/province), country, and postal code when available.

This is useful when you're traveling and don't know the name of the town you're passing through, when you need to fill out a form that asks for your current city, or when you're at a border between two municipalities and want to know which one you're actually in. The tool also shows your result on the map with a highlighted boundary when available.

What State Am I In?US

The state detection tool identifies which US state you are in using GPS or address search. It runs a point-in-polygon test against state boundary data, so it works instantly even without an internet connection after the initial page load. The result includes the state name, abbreviation, capital, population, area, and the number of counties.

This tool is most useful near state borders — if you're driving on I-95 between Connecticut and New York, or along the Four Corners area where four states meet, the tool tells you exactly which side of the line you're on. It handles DC and US territories as well.

What ZIP Code Am I In?US

The ZIP code finder detects your current US ZIP code using GPS or address search. It matches your coordinates against Census ZCTA boundaries to return the correct 5-digit ZIP, along with the associated city, county, state, population, and median income. The ZIP boundary is drawn on the map so you can see exactly where your ZIP starts and ends.

People commonly search for their ZIP code when filling out online forms, registering for services, or verifying their mailing address. The tool is especially useful when you've recently moved and aren't sure of your new ZIP, or when you're at a location where the ZIP isn't posted anywhere visible.

Drive Time Map

The Drive Time Map shows how far you can drive, bike, or walk from any location within a chosen number of minutes. Instead of drawing a simple circle, it calculates an isochrone — a polygon that follows actual roads, respects speed limits, and accounts for terrain like rivers and mountains. You can toggle multiple time intervals (10, 15, 30, 60, 90, or 120 minutes) and see them layered on the map simultaneously.

This tool is built on the Valhalla open-source routing engine using OpenStreetMap road data. It works worldwide — not just in the United States. Common uses include commute planning (set your workplace and see every neighborhood within 30 minutes), delivery zone mapping (define realistic service boundaries for restaurants and couriers), and retail site selection (compare how many customers can reach two candidate locations).

Unlike Google Maps, which only offers turn-by-turn directions between two specific points, the Drive Time Map shows the entire reachable area in every direction at once. The result is far more useful for any decision that depends on travel time — you see the full picture, not just one route.

Map Radius Tool

The Map Radius Tool draws a geodesic circle on an interactive map centered on any location. Set the center by address search, GPS, or clicking the map, then adjust the radius with a slider (1–500 miles) or type a custom value up to 3,000 miles. The circle updates instantly and shows area, perimeter, and diameter in your chosen unit (miles or kilometers).

Unlike a naïve circle drawn on a Mercator map, this tool uses Turf.js geodesic calculations that model the Earth as an ellipsoid. The result is a true circle on the Earth's surface — important at high latitudes where Mercator distortion would stretch a simple circle into an ellipse. You can add multiple circles to compare overlapping coverage areas or visualize different radii from the same center.

People use the radius tool for signal-range estimation (cell towers, radio stations, Wi-Fi), delivery zone visualization, "within X miles of" searches for real estate and job hunting, and emergency evacuation planning. The tool generates a shareable URL so you can send your exact map configuration to someone else.

Map Area Calculator

The area calculator lets you draw a custom polygon on the map by clicking to place vertices, then shows the enclosed area in square miles, square kilometers, acres, hectares, and square feet. It also calculates the perimeter in miles and kilometers. The geodesic calculation accounts for the Earth's curvature, so it's accurate for areas of any size — from a backyard lot to an entire country.

Common uses include estimating property lot sizes, measuring park or farm acreage, calculating the area of a lake or forest from satellite view, and comparing the size of geographic regions. The tool supports multiple shapes on the same map, undo (remove last vertex), and clear. Unlike Google Earth Pro's measurement tool, this runs in any browser with no installation.

Distance Between Two Places

The distance calculator measures the straight-line (great-circle) distance between any two points on Earth. Click the map twice — first click sets the start, second click sets the destination — or search by address, city, or landmark. The tool instantly shows the distance in miles, kilometers, nautical miles, feet, and meters, with a dashed line drawn on the map between the two points.

The calculation uses the Haversine formula on the WGS84 ellipsoid, which is accurate to within meters at any distance. This matters for long distances where flat-earth approximations diverge significantly. The tool also shows bearing (compass direction) from origin to destination, which is useful for aviation, marine navigation, and orienteering.

Common uses include estimating flight distances, comparing how far apart two cities are, planning road trips (as a rough lower bound — actual driving distance is always longer than straight-line), and answering geography trivia questions like "Is Tokyo or London closer to New York?"

Halfway Between Two Places

The midpoint calculator finds the geographic halfway point between two locations. Set two points by clicking the map or searching addresses, and the tool calculates the great-circle midpoint — the point equidistant from both along the shortest path over the Earth's surface. It shows the midpoint coordinates, the nearest city or town, and the distance from each endpoint.

This tool is popular for finding a fair meeting spot between two people who live in different cities, choosing a restaurant equidistant from two offices, or identifying the midpoint of a road trip for a rest stop. The geodesic midpoint is more accurate than a simple average of coordinates, especially over long distances where the curvature of the Earth matters.

Find ZIP Codes in RadiusUS

This tool finds every US ZIP code whose center falls within a chosen radius of any location. Set a center point by clicking the map, searching an address, or using GPS, then adjust the radius from 1 to 500 miles. The results table shows each ZIP code with its city, county, state, population, and distance from center — sortable by any column and exportable to CSV.

ZIP code boundaries from the 2020 Census (ZCTA polygons) are drawn directly on the map, so you can see the exact shape of each ZIP and hover for demographic details. The drag-to-resize handle on the circle edge lets you expand or shrink the radius interactively. This is particularly useful for direct mail targeting, franchise territory planning, healthcare service area analysis, and EDDM campaign scoping.

In a dense urban core like Manhattan, a 5-mile radius can return over 150 ZIP codes. In rural Wyoming, a 50-mile radius might return only 20. The tool handles this full range and loads all 41,551 US ZIPs in the browser for instant filtering — no server queries after the initial page load.

Find Cities in RadiusUS

This tool finds all US cities and towns within a chosen distance of any point. It searches a database of 27,722 populated places derived from US Census ZIP code data, with population-weighted centroids for accurate positioning. Results show city name, state, population, and distance — sortable and filterable by minimum population. City markers on the map are sized by population, so you can instantly see which cities are largest.

Use cases include relocation research ("what cities are within 50 miles of my job?"), market analysis ("how many cities over 10,000 population are within 100 miles?"), and road trip planning ("what's near this highway stop?"). The tool complements the ZIP code radius tool — ZIPs for mailing lists, cities for human-readable location references.

Population Within RadiusUS

The population radius tool calculates the total number of people living within a given distance of any US location. It sums population across all ZIP codes whose centers fall inside your radius, then breaks down the demographics: median household income, median age, education level, poverty rate, racial composition, and housing units. ZIP dots on the map are colored by population density.

This is essential for market sizing, grant applications, public health service area definitions, and retail feasibility studies. A 15-mile radius from a suburban mall might contain 500,000 people; the same radius from a rural town might contain 12,000. The demographic breakdown helps you understand not just how many people are nearby, but what the population looks like.

Address to County LookupUS

This tool converts any US address or coordinate to its county using a point-in-polygon test against Census Bureau county boundaries loaded in the browser. Type an address, click the map, or use GPS — the tool returns the county name, FIPS code, county seat, population, area, median income, and demographic summary.

The tool is commonly used by real estate agents (county determines tax rates and school districts), insurance professionals (county affects flood zones and risk ratings), legal researchers (county determines court jurisdiction), and data analysts who need to geocode addresses to counties for spatial analysis. The FIPS code output is particularly useful for joining with federal datasets.

County Map with CitiesUS

The county map tool displays all cities within a selected US county on an interactive map, with markers sized by population. Search for a county by name or use "Detect My Location" to find yours automatically. The tool shows configurable city labels (top 10, all, or none), a minimum population filter, and a sortable table of all cities with population data.

This is useful for county-level research — understanding the geographic distribution of population within a county, identifying the largest cities, and seeing how rural vs. urban the county is. Teachers use it for local geography lessons, and real estate professionals use it to understand the layout of unfamiliar counties.

Latitude & Longitude Finder

The coordinate finder returns the precise latitude and longitude of any location on Earth. Click the map, search an address, or use GPS — the tool shows coordinates in four formats: decimal degrees (DD), degrees-minutes-seconds (DMS), degrees-decimal-minutes (DMM), and geohash. It also calculates the antipode (the point diametrically opposite on the globe) and shows your hemisphere, distance from the equator, and distance from the prime meridian.

This tool is commonly used by surveyors, geocachers, drone pilots filing FAA airspace requests, and developers building location-aware applications. The DMS format is standard for aviation and maritime use, while decimal degrees are preferred for databases and APIs. The geohash format is useful for spatial indexing in software systems.

Elevation Finder

The elevation tool returns the altitude above sea level for any point on Earth, using the Copernicus 30-meter Digital Elevation Model via the Open-Meteo API. Click the map, search a location, or use GPS to get elevation in feet and meters, plus a terrain category, a comparable landmark for context, atmospheric pressure from the ISA barometric formula, and effective oxygen percentage at altitude.

Common searches include "what is my elevation," "what is my current altitude," and "elevation at my location." The tool is used by hikers planning routes, athletes training at altitude, pilots checking terrain clearance, and homeowners assessing flood risk. The atmospheric pressure and oxygen calculations are especially useful for high-altitude cooking and altitude sickness assessment.

Time Zone Finder

The time zone tool identifies the IANA time zone for any location on Earth. Click the map or search a place to see the time zone name (e.g., "America/New_York"), UTC offset, current local time (ticking live), and whether daylight saving time is currently in effect. It also shows a world clock comparison with 8 major cities.

This tool uses the geo-tz library with timezone-boundary-builder data, which maps every point on Earth to its correct IANA zone. It handles edge cases like Arizona (no DST), Indiana (split counties), and international zones where political boundaries don't follow longitude lines. Common uses include scheduling international meetings and verifying time zone assignments for databases.

US County Map (Interactive Choropleth)US

The interactive county map displays all 3,143 US counties as a choropleth — colored by a metric you choose. Switch between six metrics: population, population density, median household income, median age, college education rate, and poverty rate. Hover any county to see a detailed popup with all demographic data.

This tool is a lightweight alternative to full GIS software for quick nationwide county comparisons. It loads all demographic data in the browser and renders the choropleth via MapLibre feature-state, so metric switching is instantaneous. Common uses include visualizing regional economic patterns, identifying demographic clusters, and building intuition about the geographic distribution of US population and wealth.