RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4534 locations in the last 30 days (4682 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/28/20261457 N CALIFORNIA AVEWest Town26Open—InternetCity 311
10/5/20251457 N CAMPBELL AVEWest Town1Completed5 daysMobile DeviceCity 311
1/12/20261457 N HAMLIN AVEHumboldt Park26Completed1 dayInternetCity 311
8/27/20261457 N HAMLIN AVEHumboldt Park26Completed13 daysInternetCity 311
9/9/20251457 N MONITOR AVEAustin29Completed14 daysPhone CallCity 311
9/23/20251457 W 73RD STWest Englewood17Completed8 daysPhone CallCity 311
8/6/20261457 W ADDISON STLake View44Completed1 dayInternetCity 311
9/2/20251457 W BELLE PLAINE AVELake View47Completed8 daysMobile DeviceCity 311
12/26/20251457 W CATALPA AVEEdgewater48Completed3 daysInternetCity 311
7/29/20261457 W LELAND AVEUptown46Completed6 daysInternetCity 311
5/11/20261457 W LELAND AVEUptown46Completed2 daysInternetCity 311
6/30/20261457 W NORWOOD STEdgewater48Completed2 daysInternetCity 311
7/16/20261457 W NORWOOD STEdgewater48Completed12 daysInternetCity 311
10/6/20251457 W NORWOOD STEdgewater48Completed1 dayPhone CallCity 311
9/2/20251457 W NORWOOD STEdgewater48Completed13 daysInternetCity 311
5/29/20261457 W NORWOOD STEdgewater48Completed4 daysInternetCity 311
8/2/20261457 W WALTON STWest Town1Completed12 daysInternetCity 311
2/6/20261458 S HARDING AVENorth Lawndale24Completed3 daysPhone CallCity 311
5/26/20261458 W 107TH STBeverly19Completed3 daysInternetCity 311
1/16/20261458 W CHESTNUT STWest Town27Completed4 daysInternetCity 311
8/17/20261458 W LELAND AVEUptown46Completed15 daysInternetCity 311
10/1/20251458 W OLIVE AVEEdgewater48Completed8 daysMobile DeviceCity 311
8/18/20251458 W OLIVE AVEEdgewater48Completed8 daysMobile DeviceCity 311
7/15/20261458 W RASCHER AVEEdgewater48Completed8 daysMobile DeviceCity 311
8/23/20251458 W RASCHER AVEEdgewater48Completed4 daysMobile DeviceCity 311
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