RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4416 locations in the last 30 days (4580 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/12/20255790 N ELSTON AVEJefferson Park45Completed9 daysPhone CallCity 311
10/9/20255788 S ARCHER AVEGarfield Ridge23Completed5 daysMobile DeviceCity 311
12/5/20255786 S ARCHER AVEGarfield Ridge23Completed3 daysAlderman's OfficeCity 311
10/12/20255784 N ELSTON AVEJefferson Park45Completed9 daysPhone CallCity 311
3/6/20265772 N AVONDALE AVENorwood Park41Completed3 daysMobile DeviceCity 311
9/6/20255768 S ARCHER AVEGarfield Ridge23Completed11 daysInternetCity 311
10/13/20265766 N AVONDALE AVENorwood Park41Open—Mobile DeviceCity 311
7/28/20255762 W AINSLIE STJefferson Park45Completed9 daysAlderman's OfficeCity 311
7/25/20265761 N VIRGINIA AVEWest Ridge50Completed11 daysMobile DeviceCity 311
10/2/20255760 W GRAND AVEBelmont Cragin36Completed7 daysMobile DeviceCity 311
9/9/20265760 S WABASH AVEWashington Park20Completed1 dayInternetCity 311
9/7/20265759 W LELAND AVEPortage Park45Completed14 daysInternetCity 311
8/31/20265759 W DAKIN STPortage Park38Completed10 daysAlderman's OfficeCity 311
11/13/20255759 W 64TH STClearing13Completed1 dayInternetCity 311
2/23/20265759 W 64TH STClearing13Completed2 daysInternetCity 311
4/24/20265759 W 64TH STClearing13Completed4 daysInternetCity 311
1/8/20265759 W 64TH STClearing13Completed1 dayInternetCity 311
5/26/20265759 S RICHMOND STGage Park15Completed2 daysInternetCity 311
4/10/20265759 S RICHMOND STGage Park15Completed3 daysInternetCity 311
8/19/20255759 S NOTTINGHAM AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
10/11/20255759 S NEVA AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
6/24/20265759 S MERRIMAC AVEGarfield Ridge13Completed6 daysAlderman's OfficeCity 311
7/21/20265759 S MERRIMAC AVEGarfield Ridge13Completed8 daysPhone CallCity 311
10/15/20265759 S MERRIMAC AVEGarfield Ridge13Open—InternetCity 311
2/23/20265759 S MASSASOIT AVEGarfield Ridge13Completed1 dayInternetCity 311
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