RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4477 locations in the last 30 days (4642 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/16/20261044 N FRANCISCO AVEWest Town26Completed4 daysPhone CallCity 311
8/17/20261044 N LAWNDALE AVEHumboldt Park27Completed4 daysInternetCity 311
9/4/20261044 N SPRINGFIELD AVEHumboldt Park37Completed13 daysMobile DeviceCity 311
5/14/20261044 W 31ST PLBridgeport11Completed4 daysPhone CallCity 311
7/14/20261044 W CHICAGO AVEWest Town27Completed9 daysInternetCity 311
7/24/20251044 W DIVERSEY PKWYLake View44Completed12 daysInternetCity 311
8/18/20261044 W LAWRENCE AVEUptown46Completed14 daysInternetCity 311
8/19/20261044 W MARQUETTE RDEnglewood16Completed13 daysInternetCity 311
12/31/20251044 W NEWPORT AVELake View44Completed0 daysInternetCity 311
8/26/202610451 S SEELEY AVEBeverly19Completed9 daysInternetCity 311
3/8/202610452 S MEast Side10Completed3 daysInternetCity 311
4/8/202610452 S PEORIA STWashington Heights21Completed1 dayPhone CallCity 311
1/14/202610452 S PEORIA STWashington Heights21Completed1 dayPhone CallCity 311
3/13/202610454 S EBERHART AVERoseland9Completed4 daysInternetCity 311
3/25/202610454 S EBERHART AVERoseland9Completed1 dayPhone CallCity 311
5/12/202610455 S MAPLEWOOD AVEBeverly19Completed1 dayInternetCity 311
6/30/202610456 S PEORIA STWashington Heights21Completed7 daysPhone CallCity 311
7/29/202510458 S ALBANY AVEMount Greenwood19Completed15 daysPhone CallCity 311
4/7/202610458 S ST LOUIS AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
7/29/202510459 S ST LOUIS AVEMount Greenwood19Completed6 daysMobile DeviceCity 311
9/2/20261045 N AUSTIN AVEAustin29Completed2 daysPhone CallCity 311
9/18/20251045 N AUSTIN AVEAustin29Completed7 daysInternetCity 311
8/3/20251045 N LAWNDALE AVEHumboldt Park27Completed9 daysMobile DeviceCity 311
10/13/20251045 N LAWNDALE AVEHumboldt Park27Completed8 daysMobile DeviceCity 311
11/23/20251045 N LAWNDALE AVEHumboldt Park27Completed1 dayMobile DeviceCity 311
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