Tasmap

2026-10-31

Showing Hundreds of Map Pins

A map with thirty pins can rely on visual scanning alone. Once a directory grows past a hundred landmarks, member businesses or properties, platform caps and marker clutter take over unless the map pairs reusable styles with fast search and filtering.

Many map projects start small and then meet a real inventory. A historic preservation group wants to publish all 131 landmarks across seven districts. A regional trade association has 400 member shops. A real estate investor or field coordinator has a spreadsheet of 600 properties inspected over the past two years.

That is the point where many lightweight tools hit either a hard technical ceiling or a usability wall. In the Esri Community, users migrating to ArcGIS StoryMaps Categorized Map Tours have pointed out the 200-place cap that prevents larger inventories from appearing in a single tour. On website builder forums such as the Wix Studio community, users following standard multi-marker database tutorials discover that default queries stop at 50 locations unless custom pagination code is written. Even where a tool allows larger uploads, such as Google My Maps with up to 2,000 rows per layer, dropping hundreds of identical pins onto a city turns the viewport into a solid block of color.

Clean the spreadsheet before you import

When you import 500 rows at once, you will not inspect every pin by hand. A consistent spreadsheet structure saves hours of cleanup later.

Give each row a concise display name for the map label, a complete street address or coordinate pair for placement, a category column, and a description column for the marker's article. In Tasmap, you can import up to 1,000 places, routes and areas per batch from CSV, TSV, XLSX, GeoJSON, KML or KMZ files. When you select a spreadsheet file, Tasmap inspects the column headers and sample rows to pre-fill the location mode, label column and article column automatically, and keeps any out-of-bounds or unresolvable rows in an issue summary so one bad address never ruins the rest of the batch.

Group pins into a small set of reusable styles

A reader looking at 300 pins cannot distinguish twelve subtle shades of blue. Group your directory into four to seven clear functional categories, such as Retail, Dining, Public Parking, Restrooms and Historic Landmarks, and assign each group a reusable marker style with its own color and icon.

In Tasmap, marker styles are reusable presets. If you decide later that all 85 parking pins should use a smaller circle or a darker slate color, editing the shared style in Map Elements updates every pin using that style across the entire map at once.

Equally important, those styles become interactive filters for your visitors. Anyone viewing the published or embedded map can show or hide specific marker, route or area styles from the menu, narrowing a 400-pin directory down to the forty places they actually want to see.

Let search do the heavy lifting

When a visitor opens a large directory map on a phone, they often have a specific question in mind: a shop name, a street, a date range or a numeric threshold. Pinching and zooming through hundreds of pins is the slowest way to answer that question.

Tasmap's built-in viewer search checks marker labels, individual marker articles and the main map article at the same time, and supports practical query rules right out of the box:

  • Case-insensitive text matching that tolerates minor spelling variations and punctuation differences.
  • Exact phrases wrapped in double quotes, such as "historic district", and exclusion terms prefixed with - to filter out unwanted results.
  • Numeric equality and inclusive ranges such as 1200~1800, which helps when marker notes include construction years, capacities, prices or site numbers.
  • Date matching and date ranges in standard formats like YYYY-MM-DD or YYYY/MM/DD for event schedules and inspection logs.

Including consistent numbers, dates and category keywords in your spreadsheet description column before importing turns the published map into a searchable database without writing a line of code.

Set the initial viewport to the densest cluster

If 380 of your 400 locations sit inside a three-mile downtown core and two outliers sit thirty miles away by the airport, fitting the initial camera to all 400 pins will leave the viewer staring at a zoomed-out regional highway map.

Use the Focus Area and initial camera settings in Tasmap to frame the core district where most readers start their search. Visitors who type one of the outlying locations into the search bar will still be taken straight to that pin when they select it.

References

Related reading

Import up to 1,000 locations per batch and give your readers instant search and style filtering at tasmap.app.

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