25 Map Types: Brilliant Ideas to Build Unbeatable Maps

Map Types

25 Examples of Map Types for Cartographic Inspiration

I’m a big fan of using different map types.

Unfortunately, the best ones are often overlooked.

But not today.

Because today we’ll review 25 types of maps that make a huge difference to the map reader.

Each of which you can easily add to your mapping repertoire.

Ready?

1 Firefly maps

Firefly Map

Firefly maps use lightsaber-glowing symbology with a dark desaturated backdrop. Its greatest strengths are its cinematic effects and glowing appeal. For example, their radiance stands out for earthquake events, transportation networks and population clusters maps.

2 Dot maps

Dot Map

Dot maps scatter dots in an area based on value. More dots means a higher value. And vice versa. Dot maps don’t necessarily show the exact location. They randomly spread out points in a given area best for showing density differences across regions.

READ MORE: Dot Distribution vs Graduated Symbols vs Proportional Symbol Maps

3 Graduated symbols

Graduated Symbols Map

Graduated symbol maps resize symbols based on value. For example, a small coffee cup pictogram represents low consumption and vice versa. Symbols include circles, pictograms and volumetric shapes. For depicting quantity differences, graduated symbol maps are a useful choice.

4 Vector direction maps

Wind Map

Vector direction maps rotate symbols based on angle. For example, wind maps use vector arrows that spin how the wind blows. If you want to depict wind speed, you adjust the size of arrows. For example, large arrows depict big gusts of wind.

5 Distributive flow

Distributive Flow

Distributive flow maps curl like fingers branching off to their destination depicting direction and movement. Although it’s not necessarily the accurate route being traveled, it’s an abstract way how commodities or information travels from an origin to multiple destinations.

6 Density-equalizing cartograms

Density-equalizing cartogram

Density-equalizing (contiguous) cartograms are your traditional cartograms. Like all cartograms, they bulge the size of geographic areas from representative values. Although it distorts each feature, each feature remains connected.

READ MORE: How to Create Flow Maps and Link Movement with Direction Lines

7 Voronoi diagram

Voronoi Diagram

Voronoi diagrams best understand proximity and distance of features. It starts with seed points that divides regions for each point. Each region shows the closest region for a point. So If you place a point in any region, than it’s the closest to that seed point.

8 Choropleth

Choropleth Map Types

Choropleth maps varies the shading of each area based on its value. It’s one of the most common map types because they’re easy to understand and add a bit of color. They’re different from heat maps because they require a geographic boundary. We assume the entire boundary is homogeneous with its assigned shading.

READ MORE: How to Sketch a Voronoi Diagram with Thiessen Polygons

9 Heat maps (Point-density)

Heat Map Point-density

Heat maps color-code using the density of points. For example, if there is a high density of crimes in an area, it shades the area as red. But less crimes are assigned a blue shading. By using this type of map, you can pinpoint the safest and most dangerous places in a city. And they’re not tied to a boundary like choropleth maps.

10 Isochrone

Isochrone Map

Isochrone maps reveal the geographic extent at which one can travel. If you start at a given point, it shades how far you can travel within an amount of time. For example, fire stations measure their drive-time distances using a city’s road network. If they know which areas they have difficulty providing service for, it gives insight where to build new fire stations.

READ MORE: Isochrone Maps: How to Find Service Areas with ArcGIS Network Analyst

11 Dasymetric

Dasymetric maps

Dasymetric and choropleth maps are both thematic mapping techniques. But dasymetric maps classify quantitative aerial data. For example, population can be aggregated into areal census tracts. In a dasymetric map, each census tract is assumed to be homogenous.

12 Space-time cubes

Space-time cubes

Space Time cubes are slices of time stacked up in a three-dimensional space. Older time cubes are on the bottom. New slices of time are on top. So they’re ideal to show how values change in geographic space. For usability, it takes time to get accustomed to. But in terms of 4D mapping techniques, it’s one of a kind.

13 Topographic

Topographic Map

Topographic maps are the all-purpose maps. Generally, they includes terrain, natural and man-made features. From topographic surveys, we construct these map types. Fast forward to today, they still hold tremendous value in infrastructure, military and resource planning.

14 Contour (Isolines)

Contour Maps

Contour maps have lines with constant values joining points of equal elevation. If contour lines are closely-spaced together, the terrain is steep. But if they are widely-spaced apart, it’s a gradual incline.

READ MORE: What Do Contour Lines on a Topographic Map Show?

15 Data visualizations

Data Viz Maps

Data viz meet maps. When you put bar graphs, pie charts and line plots in maps, suddenly statistics has location. And the saying goes: without geography you’re nowhere. So with Tableau-style visualizations, you put data visualizations on the map.

16 Non-contiguous cartogram

Non-contiguous cartogram

Non-contiguous cartograms resize features based on values and keeps their shape in tact. But features don’t have to stay connected. They can freely move scattering them like pieces of a jigsaw puzzle. So features scale up or down according to value. But the tradeoff is that you lose their precise placement.

17 Dorling cartogram

Dorling Cartogram

The Dorling cartogram uses shapes like circles and rectangles to depict area. By using shapes, it’s easier to recognize patterns. But its main weakness is that you lose its geographic reference. It can get to such a point that you don’t know what you’re looking at.

18 Surface maps

Surface Maps

Surface maps take a set of known values and creates a surface predicting the unknown ones in between. This 3D surface (isopleth) is common for rainfall, temperature and elevation. They differ from choropleth maps because they’re not tied to a geographic boundary or region.

READ MORE: Cartogram Maps: Data Visualization with Exaggeration

19 Schematics

Schematics

Schematics simplify maps in an extreme way. For example, subway maps, traffic lights and electric networks use schematics as a simplified view. At a cost, schematics lose orientation and a true basemap. But readers can gain greater clarity.

20 Network flow

Network Flow

Network flow maps show movement along an established network. For example, flight paths, transportation networks and communication systems use network flow maps. The purpose is to display traffic in the map. For instance, thick lines have denser flow. But thin lines have less traffic.

21 Coxcomb chart (Polar area chart)

Coxcomb Chart Maps

The coxcomb chart is a twist to the pie chart. Like petals on a flower, each petal is packed with single or multiple slices of information. For example, petals in a coxcomb chart can radially display months of a year. If the petals are large, it has a higher quantities like this wildlife bird strike map.

22 Timeslice maps

Timeslice Maps

Timeslice maps portray a journey by dividing the map canvas into chunks of time. For example, the path of a tsunami divides the map canvas in minutes. Napoleon’s March is a timeslice map in three dimensions over days. These types of maps are hard to implement, but extremely effective at communicating time.

READ MORE: Epic Web Maps – The Maps Hall of Fame [Best Maps]

23 Hexagonal binning

Hexbin Maps

Rather than square grids, the future of mapping is hexagons. Actually, circles make the best grids because its perimeter has equal distances from a center point. Overall, this reduces sampling bias. But you can’t connect neighboring circles into a continuous grid. So this is why we use hexbins for sampling which resembles circles.

24 Word (typography) maps

Word Maps

Word maps assign dominant keywords to features filling in the area of the map. Word placement is key for this type of map in terms of rotation, scaling and skewing. Large words suggest an influential topic. Whereas small words puts less emphasis on a keyword.

25 Radial flow

Radial flow

In radial flow maps, lines radiate from an origin. They radiate outwards to a single or multiple destination nodes. Each hub links that movement of a phenomenon. It has a directional flow line which is often in a radial pattern.

All hail the cartographer

Map Types

Cartographers are heroes in any organization.

And every hero has a secret.

Don’t go through life keeping yours hidden 🙂

Let these map types help you discover your full potential to become the hero you’ve always wanted to be.

So which map types are you eyeing in your next masterpiece?

Let us know with a comment below.

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