RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4437 locations in the last 30 days (4600 reports) · Last sighting 13 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/22/202511431 S CHURCH STMorgan Park19Completed1 dayInternetCity 311
10/27/202511431 S WESTERN AVEMorgan Park19Completed3 daysPhone CallCity 311
9/17/202611431 S WESTERN AVEMorgan Park19Open—Phone CallCity 311
11/9/202511434 S DAVOL STMorgan Park21Completed2 daysPhone CallCity 311
9/7/202511434 S FOREST AVERoseland9Completed10 daysInternetCity 311
9/19/202611434 S FOREST AVERoseland9Open—InternetCity 311
11/14/202511434 S MAPLEWOOD AVEMorgan Park19Completed3 daysPhone CallCity 311
9/29/202511435 S DRAKE AVEMount Greenwood19Completed8 daysPhone CallCity 311
3/16/202611435 S FORRESTVILLE AVEPullman9Completed1 dayInternetCity 311
6/29/202611435 S SAWYER AVEMount Greenwood19Completed1 dayInternetCity 311
9/26/202511437 S MICHIGAN AVERoseland9Completed11 daysMobile DeviceCity 311
9/18/202511437 S MICHIGAN AVERoseland9Completed8 daysMobile DeviceCity 311
9/8/202611439 S MAY STMorgan Park21Completed15 daysInternetCity 311
6/3/202611439 S SAWYER AVEMount Greenwood19Completed1 dayPhone CallCity 311
8/5/20251143 E 91ST STBurnside8Completed7 daysPhone CallCity 311
8/19/20261143 N LAWNDALE AVEHumboldt Park36Completed13 daysPhone CallCity 311
7/29/20261143 N LAWNDALE AVEHumboldt Park36Completed13 daysPhone CallCity 311
9/19/20251143 N LAWNDALE AVEHumboldt Park36Completed12 daysPhone CallCity 311
12/23/20251143 N MOZART STWest Town26Completed1 dayMobile DeviceCity 311
8/17/20251143 N RICHMOND STWest Town26Completed8 daysInternetCity 311
8/13/20261143 N SPRINGFIELDHumboldt Park37Completed13 daysSalesforce Mobile AppCity 311
9/21/20261143 N SPRINGFIELD AVEHumboldt Park37Open—Phone CallCity 311
1/27/20261143 W 70TH STEnglewood16Completed1 dayMobile DeviceCity 311
3/4/20261143 W COLUMBIA AVERogers Park49Completed2 daysMobile DeviceCity 311
7/5/20261143 W GEORGE STLake View44Completed8 daysMobile DeviceCity 311
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