RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4500 locations in the last 30 days (4667 reports) · Last sighting 23 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
6/4/2026883 N HERMITAGE AVEWest Town1Completed5 daysMobile DeviceCity 311
8/21/2026933 N HERMITAGE AVEWest Town1Completed11 daysMobile DeviceCity 311
10/9/20252207 N MAPLEWOOD AVELogan Square1Completed8 daysPhone CallCity 311
1/20/20261221 W ERIE STWest Town1Completed1 dayInternetCity 311
6/4/20262544 W MEDILL AVELogan Square1Completed5 daysInternetCity 311
10/9/20251530 N ARTESIAN AVEWest Town1Completed8 daysInternetCity 311
7/31/20251419 N MAPLEWOOD AVEWest Town1Completed12 daysPhone CallCity 311
9/14/20262106 N WHIPPLE STLogan Square1Open—Mobile DeviceCity 311
11/14/20251370 W GRAND AVEWest Town1Completed3 daysPhone CallCity 311
11/14/20252863 W PALMER STLogan Square1Completed3 daysMobile DeviceCity 311
11/17/20252252 N WESTERN AVELogan Square1Completed1 dayMobile DeviceCity 311
10/18/20251529 W CHESTNUT STWest Town1Completed4 daysMobile DeviceCity 311
5/12/20262517 N ARTESIAN AVELogan Square1Completed3 daysMobile DeviceCity 311
9/14/20262130 W EVERGREEN AVEWest Town1Open—Mobile DeviceCity 311
9/3/20252609 W LOGAN BLVDLogan Square1Completed13 daysMobile DeviceCity 311
11/18/20251701 N MAPLEWOOD AVEWest Town1Completed1 dayInternetCity 311
8/21/20261265 N MILWAUKEE AVEWest Town1Completed11 daysInternetCity 311
11/20/20251041 N WINCHESTER AVEWest Town1Completed1 dayPhone CallCity 311
2/18/20262417 N CAMPBELL AVELogan Square1Completed1 dayInternetCity 311
8/21/20262420 W LE MOYNE STWest Town1Completed11 daysAlderman's OfficeCity 311
6/4/2026854 N HERMITAGE AVEWest Town1Completed5 daysInternetCity 311
5/26/20262047 W HADDON AVEWest Town1Completed3 daysMobile DeviceCity 311
6/4/20261445 W WALTON STWest Town1Completed5 daysInternetCity 311
8/4/20251720 W ERIE STWest Town1Completed9 daysPhone CallCity 311
8/29/20261501 N BELL AVEWest Town1Completed12 daysMobile DeviceCity 311
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