RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4511 locations in the last 30 days (4677 reports) · Last sighting 19 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
4/14/20261030 N DEARBORN STNear North Side2Completed1 dayPhone CallCity 311
11/5/20251030 N DEARBORN STNear North Side2Completed1 dayInternetCity 311
9/4/20251030 N DEARBORN STNear North Side2Completed7 daysInternetCity 311
2/28/20261030 N LECLAIRE AVEAustin37Completed3 daysInternetCity 311
8/12/20251030 N MARSHFIELD AVEWest Town1Completed1 dayPhone CallCity 311
7/14/20261030 N WINCHESTER AVEWest Town1Completed8 daysAlderman's OfficeCity 311
1/17/20261030 N WOOD STWest Town1Completed3 daysInternetCity 311
5/4/20261030 S MENARD AVEAustin29Completed7 daysPhone CallCity 311
7/23/20251030 W 20TH PLLower West Side25Completed8 daysMobile DeviceCity 311
6/26/20261030 W GEORGE STLake View44Completed5 daysMobile DeviceCity 311
10/7/202510310 S AVENUE JEast Side10Completed3 daysWalk-inCity 311
11/17/202510314 S CALUMET AVERoseland9Completed2 daysPhone CallCity 311
11/17/202510314 S CALUMET AVERoseland9Completed1 dayPhone CallCity 311
7/20/202610314 S CENTRAL PARK AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
5/19/202610314 S GREEN STWashington Heights21Completed2 daysPhone CallCity 311
10/7/202510314 S JEast Side10Completed3 daysInternetCity 311
8/19/202610315 S CALIFORNIA AVEBeverly19Completed14 daysInternetCity 311
6/8/202610315 S EMERALD AVERoseland21Completed1 dayPhone CallCity 311
6/26/202610315 S EMERALD AVERoseland21Completed6 daysPhone CallCity 311
5/11/202610315 S LAWNDALE AVEMount Greenwood19Completed1 dayAlderman's OfficeCity 311
3/30/202610315 S MILLARD AVEMount Greenwood19Completed1 dayPhone CallCity 311
9/10/202510316 S PEORIA STWashington Heights21Completed12 daysAlderman's OfficeCity 311
6/29/202610317 S MAPLEWOOD AVEBeverly19Completed7 daysInternetCity 311
6/22/202610317 S WHIPPLE STMount Greenwood19Completed3 daysInternetCity 311
8/5/202510318 S CALUMET AVERoseland9Completed1 dayInternetCity 311
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