RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4490 locations in the last 30 days (4656 reports) · Last sighting 22 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.

32080fewer → more

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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/30/20262235 W 18TH PLLower West Side25Completed1 dayMobile DeviceCity 311
3/11/2026130 N LARAMIE AVEAustin37Completed1 dayMobile DeviceCity 311
5/12/20264224 S MICHIGAN AVEOakland4Completed1 dayPhone CallCity 311
12/18/20251710 S WOOD STLower West Side25Completed1 dayMobile DeviceCity 311
3/30/20262222 W 19TH STLower West Side25Completed1 dayMobile DeviceCity 311
3/18/20262411 W BALMORAL AVELincoln Square40Completed1 dayInternetCity 311
12/10/20253669 N ELSTON AVEIrving Park33Completed1 dayInternetCity 311
2/10/20261651 N LONG AVEAustin37Completed1 dayPhone CallCity 311
8/12/20261744 W 100TH STBeverly19Completed1 dayMobile DeviceCity 311
4/21/20261256 W 71ST STWest Englewood17Completed1 dayInternetCity 311
5/7/20263904 N WOLCOTT AVENorth Center47Completed1 dayMobile DeviceCity 311
3/9/20263614 N SEELEY AVENorth Center47Completed1 dayMobile DeviceCity 311
4/7/20264133 S CALUMET AVEGrand Boulevard3Completed1 dayMobile DeviceCity 311
11/16/20252848 N LOWELL AVEHermosa31Completed1 dayInternetCity 311
12/22/20255232 S MERRIMAC AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
4/23/20261508 W WILSON AVEUptown47Completed1 dayMobile DeviceCity 311
8/17/20252925 W 59TH STChicago Lawn15Completed1 dayInternetCity 311
3/23/20261708 S UNION AVELower West Side25Completed1 dayMobile DeviceCity 311
2/11/20261124 W 19TH PLLower West Side25Completed1 dayInternetCity 311
7/20/202610314 S CENTRAL PARK AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
11/2/2025125 E 73RD STGreater Grand Crossing6Completed1 dayInternetCity 311
2/18/2026508 W 46TH STNew City15Completed1 dayInternetCity 311
2/3/20268323 S MORGAN STAuburn Gresham17Completed1 dayInternetCity 311
11/23/20252937 W WILCOX STEast Garfield Park27Completed1 dayPhone CallCity 311
5/7/20261824 W LARCHMONT AVENorth Center47Completed1 dayPhone CallCity 311
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