RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4568 locations in the last 30 days (4723 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.

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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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/6/20251236 N STATE PKWYNear North Side2Completed13 daysAlderman's OfficeCity 311
3/3/20261236 S CENTRAL PARK AVENorth Lawndale24Completed1 dayPhone CallCity 311
8/24/20261236 S SAWYER AVENorth Lawndale24Completed9 daysInternetCity 311
9/17/20251236 W 31ST PLBridgeport11Completed11 daysInternetCity 311
11/17/20251236 W BELMONT AVELake View44Completed1 dayMobile DeviceCity 311
1/12/20261236 W DIVERSEY PKWYLake View32Completed1 dayMobile DeviceCity 311
10/25/20251236 W DIVERSEY PKWYLake View32Completed4 daysMobile DeviceCity 311
1/4/20261236 W OAKDALE AVELake View32Completed1 dayMobile DeviceCity 311
5/17/20261236 W OAKDALE AVELake View32Completed3 daysMobile DeviceCity 311
2/26/20261237 N PULASKI RDHumboldt Park37Completed1 dayInternetCity 311
1/9/20261237 S CHRISTIANA AVENorth Lawndale24Completed0 daysMobile DeviceCity 311
7/28/20261237 W FARWELL AVERogers Park49Completed9 daysPhone CallCity 311
10/31/20251237 W FOSTER AVEUptown47Completed3 daysInternetCity 311
4/14/20261237 W OAKDALE AVELake View32Completed2 daysMobile DeviceCity 311
2/22/20261237 W OAKDALE AVELake View32Completed1 dayInternetCity 311
9/26/20251237 W WELLINGTON AVELake View32Completed10 daysMobile DeviceCity 311
10/23/20251237 W WELLINGTON AVELake View32Completed5 daysInternetCity 311
10/16/20251237 W WELLINGTON AVELake View32Completed5 daysMobile DeviceCity 311
8/8/20251238 E 46TH STKenwood4Completed4 daysPhone CallCity 311
7/9/20261238 S KILDARE AVENorth Lawndale24Completed8 daysAlderman's OfficeCity 311
11/13/20251238 W 110TH PLMorgan Park21Completed1 dayMobile DeviceCity 311
7/12/20261238 W 115TH STMorgan Park21Completed11 daysInternetCity 311
4/21/20261238 W ALBION AVERogers Park49Completed1 dayMobile DeviceCity 311
9/24/20251238 W GEORGE STLake View32Completed8 daysPhone CallCity 311
10/15/20251238 W OAKDALE AVELake View32Completed6 daysMobile DeviceCity 311
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