Assign sales coverage by US county
Prepare a sales coverage map for a quarterly review using eighteen counties across Illinois, Indiana and Wisconsin. Real Census county boundaries carry four hypothetical representative assignments and sample account counts. Download the GeoJSON, edit assignments in your data tool and reimport it into Studio. Keep the distinction between a county assignment and a road-based service area visible in the proposal.
Start an editable copy with this data and your current map styling.
Public Census county boundaries + sample sales assignments
Data: US Census 2024 county cartographic boundaries, 1:500,000; selected by five-digit GEOID. Representative names and account counts are simulated. Geometry is retained from the existing Census source. These assignments are a communication example, not actual sales ownership, contractual exclusivity, ZIP areas or travel-time coverage.
Start with the example data
Download the input files, inspect their sources and sample fields, then import them or open the styled example in Studio.
- Download county assignment GeoJSON
18 actual county polygons with editable representative and sample account fields.
What to look at
- Census GEOIDs keep county identities stable when you replace assignments.
- Four representative categories share one legend; the popup retains each county and account count.
- Download the GeoJSON to keep the geometry with the assignment fields; a list of GEOIDs alone does not draw polygons.
Source columns
These fields describe the example data. CSV and Excel use first-row headers; GIS formats store geometry and feature properties. Required geometry depends on the map type.
| Column | Type | Example |
|---|---|---|
| county | text | Cook County |
| geoid | identifier | 17031 |
| representative | category | Sample rep A |
| sample_accounts | number | 81 (fictional) |
Rebuild it with your own data
- 1
Get your GeoJSON file ready
The example fields are county, geoid, representative, sample_accounts. For CSV or Excel, put headers in the first row. GIS files carry geometry and feature properties. Prepare any grid, catchment or route geometry before import.
- 2
Drop it into the studio
MapCrafter detects the geometry, counts the features, and shows the layers it found.
- 3
Style the imported layer
Pick which column drives colour, and which drives size or width where relevant.
- 4
Pick a basemap theme
Positron is used here. 15 other basemaps are available, including official OpenFreeMap styles. Switch using Layers & basemap.
- 5
Share or export
Publish a link, embed the map, or export a PNG at print resolution.
Questions about this example
- What file format does this county sales territories use?
- This example illustrates GeoJSON data. The live preview uses GeoJSON geometry. MapCrafter reads GeoJSON directly, along with Excel, CSV, KML, KMZ, GPX, GeoJSON, TopoJSON and zipped Shapefile. No conversion step and no desktop software.
- What columns does the source data need?
- The file used here has 4 columns: county, geoid, representative, sample_accounts. For tabular imports, supply coordinate columns, WKT or GeoJSON geometry, or address columns for an explicit geocoding step. Polygon and line files carry their geometry separately from these attributes.
- Can I use my own data with this map type?
- Yes. Open the studio, drop in your file, and MapCrafter detects the geometry and applies a starting style. Then style the layer and choose which property drives colour, size or width. The studio can render a point heatmap, but grids, routes and catchment polygons must be prepared before import.
- Can I export or share the finished map?
- Each map can be published to a short share link, embedded in another page with an iframe, or exported as a print-resolution PNG. The cleaned-up geometry can also be exported as GeoJSON. All of that is available on the free tier.
- Where does the data in this example come from?
- Data: US Census 2024 county cartographic boundaries, 1:500,000; selected by five-digit GEOID. Representative names and account counts are simulated. Geometry is retained from the existing Census source. These assignments are a communication example, not actual sales ownership, contractual exclusivity, ZIP areas or travel-time coverage.
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Last updated 2026-10-25