RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4583 locations in the last 30 days (4739 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/17/202510314 S CALUMET AVERoseland9Completed1 dayPhone CallCity 311
2/12/20263325 S LOWE AVEBridgeport11Completed1 dayPhone CallCity 311
6/25/20261751 W ALBION AVERogers Park40Completed1 dayPhone CallCity 311
5/28/2026252 W 115TH STRoseland9Completed1 dayPhone CallCity 311
8/17/202610509 S LASALLE STRoseland9Completed1 dayPhone CallCity 311
7/20/20267559 N ROGERS AVERogers Park49Completed1 dayPhone CallCity 311
9/29/20267036 S CAMPBELL AVEChicago Lawn17Completed1 dayPhone CallCity 311
4/20/20263926 W 102ND STMount Greenwood19Completed1 dayPhone CallCity 311
1/14/20262208 N KIMBALL AVELogan Square35Completed1 dayAlderman's OfficeCity 311
6/10/20267818 S MARQUETTE AVESouth Shore7Completed1 dayMobile DeviceCity 311
5/4/20268857 S STATE STChatham6Completed1 dayInternetCity 311
5/5/20262137 W 22ND PLLower West Side25Completed1 dayPhone CallCity 311
5/5/20262407 S SPRINGFIELD AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
1/5/20266256 W WARWICK AVEDunning38Completed1 dayPhone CallCity 311
1/27/20261649 N KILDARE AVEHumboldt Park26Completed1 dayPhone CallCity 311
12/10/20255842 S MEADE AVEGarfield Ridge13Completed1 dayInternetCity 311
10/28/20254931 N MASON AVEJefferson Park45Completed1 dayPhone CallCity 311
4/7/20263619 S LOWE AVEBridgeport11Completed1 dayPhone CallCity 311
12/15/20252911 W 102ND PLBeverly19Completed1 dayPhone CallCity 311
11/4/20251626 W BLACKHAWK STWest Town1Completed1 dayInternetCity 311
11/5/20252259 W LELAND AVELincoln Square47Completed1 dayInternetCity 311
4/22/20264423 S KOMENSKY AVEArcher Heights14Completed1 dayInternetCity 311
12/3/2025334 N LATROBE AVEAustin37Completed1 dayPhone CallCity 311
12/2/20255733 S CALUMET AVEWashington Park20Completed1 dayInternetCity 311
8/20/20262701 W SHERWIN AVEWest Ridge50Completed1 dayPhone CallCity 311
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