RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4644 locations in the last 30 days (4800 reports) · Last sighting 17 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/12/20266211 N CICERO AVEForest Glen39Open—InternetCity 311
7/27/20256210 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
7/29/20256210 S WHIPPLE STChicago Lawn15Completed8 daysAlderman's OfficeCity 311
11/7/20256210 S PARKSIDE AVEClearing13Completed3 daysMobile DeviceCity 311
5/29/20266210 S PARKSIDE AVEClearing13Completed4 daysMobile DeviceCity 311
8/8/20256210 S PARKSIDE AVEClearing13Completed12 daysMobile DeviceCity 311
7/5/20266210 S PARKSIDE AVEClearing13Completed9 daysMobile DeviceCity 311
10/2/20256210 S MARSHFIELD AVEWest Englewood15Completed6 daysAlderman's OfficeCity 311
2/11/20266210 S INGLESIDE AVEWoodlawn20Completed1 dayInternetCity 311
9/16/20266210 S CLAREMONT AVEChicago Lawn16Completed13 daysPhone CallCity 311
9/4/20266210 N TRIPP AVEForest Glen39Completed13 daysInternetCity 311
3/13/20266210 N DRAKE AVENorth Park50Completed3 daysMobile DeviceCity 311
5/4/20266210 N DRAKE AVENorth Park50Completed3 daysInternetCity 311
1/2/20266210 N DRAKE AVENorth Park50Completed3 daysPhone CallCity 311
11/14/2025620 W BARRY AVELake View44Completed3 daysMobile DeviceCity 311
7/15/2026620 W BARRY AVELake View44Completed12 daysMobile DeviceCity 311
8/26/2025620 W 43RD PLNew City11Completed9 daysAlderman's OfficeCity 311
10/5/2026620 S TRIPP AVEWest Garfield Park24Open—InternetCity 311
7/26/2025620 N TROY STHumboldt Park27Completed6 daysMobile DeviceCity 311
9/20/20256209 W BERTEAU AVEPortage Park38Completed11 daysInternetCity 311
3/1/20266209 W BERTEAU AVEPortage Park38Completed2 daysInternetCity 311
4/23/20266209 S PRAIRIE AVEWashington Park20Completed1 dayPhone CallCity 311
11/5/20256209 S MOZART STChicago Lawn15Completed2 daysMobile DeviceCity 311
7/24/20266209 S MENARD AVEClearing13Completed11 daysInternetCity 311
9/4/20256209 N MOZART STWest Ridge50Completed12 daysAlderman's OfficeCity 311
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