RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4628 locations in the last 30 days (4800 reports) · Last sighting 10 hours ago

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/12/20251910 N CALIFORNIA AVELogan Square1Completed8 daysMobile DeviceCity 311
10/14/20251419 N CLEAVER STWest Town1Completed7 daysInternetCity 311
1/22/20261525 W CORTEZ STWest Town1Completed1 dayAlderman's OfficeCity 311
1/13/20261419 N MAPLEWOOD AVEWest Town1Completed1 dayPhone CallCity 311
10/10/20252451 N ROCKWELL STLogan Square1Completed7 daysPhone CallCity 311
10/15/20251501 W ERIE STWest Town1Completed7 daysInternetCity 311
10/18/20251941 W CRYSTAL STWest Town1Completed6 daysMobile DeviceCity 311
2/16/20261436 N CAMPBELL AVEWest Town1Completed2 daysMobile DeviceCity 311
5/9/20262457 N FAIRFIELD AVELogan Square1Completed4 daysInternetCity 311
2/17/20261732 W POTOMAC AVEWest Town1Completed0 daysMobile DeviceCity 311
2/17/20261804 W ELLEN STWest Town1Completed0 daysMobile DeviceCity 311
6/17/20262039 N BINGHAM STLogan Square1Completed5 daysMobile DeviceCity 311
10/14/20252440 N MAPLEWOOD AVELogan Square1Completed8 daysInternetCity 311
1/20/20261221 W ERIE STWest Town1Completed1 dayInternetCity 311
2/17/20261910 N CALIFORNIA AVELogan Square1Completed1 dayMobile DeviceCity 311
2/2/20261531 N CAMPBELL AVEWest Town1Completed0 daysInternetCity 311
10/18/20251442 N ELK GROVE AVEWest Town1Completed6 daysInternetCity 311
10/18/20251529 W CHESTNUT STWest Town1Completed4 daysMobile DeviceCity 311
7/20/20261140 N WINCHESTER AVEWest Town1Completed4 daysInternetCity 311
6/16/20261719 N ROCKWELL STWest Town1Completed2 daysInternetCity 311
7/15/20261014 N DAMEN AVEWest Town1Completed12 daysInternetCity 311
10/17/20251500W W CHESTNUT STWest Town1Completed5 daysInternetCity 311
2/13/2026910 N PAULINA STWest Town1Completed3 daysPhone CallCity 311
1/31/20261125 N ASHLAND AVEWest Town1Completed2 daysInternetCity 311
9/17/20262143 W CRYSTAL STWest Town1Open—Mobile DeviceCity 311
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