RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4696 locations in the last 30 days (4849 reports) · Last sighting yesterday

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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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/15/20262412 N LOCKWOOD AVEBelmont Cragin31Completed1 dayInternetCity 311
4/14/20264531 N DOVER STUptown46Completed1 dayInternetCity 311
3/17/20261325 E 52ND STHyde Park4Completed1 dayPhone CallCity 311
4/5/20265600 W AINSLIE STJefferson Park45Completed1 dayAlderman's OfficeCity 311
1/7/20264305 W HADDON AVEHumboldt Park37Completed1 dayMobile DeviceCity 311
10/27/20251628 W OHIO STWest Town1Completed1 dayInternetCity 311
9/17/20267029 W HENDERSON STDunning38Completed1 dayPhone CallCity 311
1/27/20264044 W NELSON STAvondale31Completed1 dayAlderman's OfficeCity 311
2/2/20262312 N KEATING AVEBelmont Cragin31Completed1 dayPhone CallCity 311
2/9/20265855 S NEW ENGLAND AVEGarfield Ridge13Completed1 dayPhone CallCity 311
9/30/20253219 S NORMAL AVEBridgeport11Completed1 dayPhone CallCity 311
9/14/20263912 N KILDARE AVEIrving Park30Completed1 dayPhone CallCity 311
5/14/20263031 N MARMORA AVEBelmont Cragin30Completed1 dayPhone CallCity 311
12/4/20254414 W ARMITAGE AVEHermosa26Completed1 dayInternetCity 311
4/8/20264800 N MARINE DRUptown46Completed1 dayInternetCity 311
4/27/2026825 E 89TH PLChatham8Completed1 dayMobile DeviceCity 311
7/28/2026901 N HONORE STWest Town36Completed1 dayInternetCity 311
4/2/20264343 N MASON AVEPortage Park38Completed1 dayPhone CallCity 311
12/8/20252953 N LOWELL AVEHermosa31Completed1 dayMobile DeviceCity 311
4/2/20262541 W JARVIS AVEWest Ridge50Completed1 dayInternetCity 311
4/6/20261227 W CHASE AVERogers Park49Completed1 dayInternetCity 311
12/28/20254318 S FORRESTVILLE AVEGrand Boulevard3Completed1 dayInternetCity 311
11/20/20255911 S PRINCETON AVEEnglewood20Completed1 dayPhone CallCity 311
9/25/20252719 W CHASE AVEWest Ridge50Completed1 dayPhone CallCity 311
3/18/20266534 N HARLEM AVEEdison Park41Completed1 dayPhone CallCity 311
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