The limits that apply to accounts, maps and visitors today.
Account
Limit
Value
Maps per account
20
Custom map styles per account
5
Maps and data
Limit
Value
Features on one map (on a Compare map, on each side)
10,000
File size for an import
25 MB
A map's stored data, all features together
25 MB
Valid rows synced from a Google Sheet (not Choropleth)
10,000
Map name
32 characters
Map description, in the New Map dialog
140 characters
Map address or subdomain
63 characters: letters, numbers and hyphens
Background layers on one map (on a Compare map, on each side)
5
Layers from one vector archive or vector tile service
8
Rows in a popup
30
Images
Limit
Value
Social share image, browser tab icon, Store Locator logo, Story Map images, Draw photos
10MB
Draw image markers
2MB
Map types
Map type
Limit
Value
Draw
Custom fields per feature
20
Draw
Legend label
60 characters
Draw
Stops in a route
2 to 10
Draw
Size of a drawing when saved
About 1 MB
Choropleth
Color classes
3 to 8
Isochrone
Starting points
5
Isochrone
Ranges
6
Isochrone
Longest range
3 hours, or 100 km
Store Locator
Extra rows on a card
5
Store Locator
Filters
20
Store Locator
Town or postcode searches by visitors
300 a day per map, 600 a day across all your maps, and 20 per visitor in 10 minutes
Time Slider
Steps on the timeline
500
Time Slider
Styled categories
24
Story Map
Chapters per import
200
Story Map
Points in GPS tracks and drawn lines
8,000
Story Map, Isochrone
Size of the story or the travel-time areas when saved
About 900 KB
Crowdsourced Map
Limit
Value
Regions in a submission area
200
Submissions per visitor per hour (you set it)
up to 100
Submissions per visitor per day (you set it)
up to 1,000
Photos per submission (you set it)
up to 5
Size of one photo (you set it)
up to 20 MB
All photos in one submission, after resizing
about 4 MB
Submissions in one bulk action
100
Moderation note
1,000 characters
Rows in a CSV export
100,000
Password-protected maps
Limit
Value
Password length
6 to 128 characters
How long a browser stays unlocked
7 days
Password attempts per visitor
10 in 15 minutes
When you reach a limit
Over the feature limit, the usual answers are to combine rows before importing (one row per region rather than one per event), to split the data across several maps, or to publish it as a background layer from your own map service, which is loaded live and is not counted.