RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4422 locations in the last 30 days (4583 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/16/20254711 S OAKLEY AVENew City15Completed2 daysPhone CallCity 311
3/28/20261567 S KEDZIE AVENorth Lawndale24Completed2 daysInternetCity 311
5/13/20261333 W 31ST STBridgeport11Completed2 daysInternetCity 311
5/5/20263248 W HOLLYWOOD AVENorth Park39Completed2 daysPhone CallCity 311
8/15/20264438 S WOOD STNew City15Completed2 daysAlderman's OfficeCity 311
11/15/20256124 N HOYNE AVEWest Ridge40Completed2 daysMobile DeviceCity 311
12/20/20251726 W AUGUSTA BLVDWest Town1Completed2 daysMobile DeviceCity 311
11/24/20259339 S CHAPPEL AVECalumet Heights7Completed2 daysPhone CallCity 311
10/14/2025115 E 86TH STChatham6Completed2 daysPhone CallCity 311
4/22/20262534 S ST LOUIS AVESouth Lawndale22Completed2 daysAlderman's OfficeCity 311
6/16/20266916 S HONORE STWest Englewood17Completed2 daysMobile DeviceCity 311
3/30/20263201 N RIDGEWAY AVEAvondale30Completed2 daysAlderman's OfficeCity 311
11/5/20251051 W 34TH PLBridgeport11Completed2 daysPhone CallCity 311
3/23/20263705 W 68TH STWest Lawn23Completed2 daysPhone CallCity 311
6/7/20265248 S LOTUS AVEGarfield Ridge23Completed2 daysInternetCity 311
11/24/20256459 S KNOX AVEClearing13Completed2 daysInternetCity 311
4/14/20263620 N JANSSEN AVELake View44Completed2 daysMobile DeviceCity 311
11/19/20255153 S HARDING AVEWest Elsdon23Completed2 daysPhone CallCity 311
1/3/20265113 N TRIPP AVEAlbany Park39Completed2 daysInternetCity 311
4/15/20264736 N LINCOLN AVELincoln Square47Completed2 daysPhone CallCity 311
6/16/20265150 S HONORE STNew City16Completed2 daysMobile DeviceCity 311
5/5/20263230 N PLAINFIELD AVEDunning38Completed2 daysAlderman's OfficeCity 311
11/2/20255313 S RUTHERFORD AVEGarfield Ridge23Completed2 daysMobile DeviceCity 311
2/23/20266823 W 64TH PLClearing13Completed2 daysInternetCity 311
5/27/2026237 W 109TH PLRoseland9Completed2 daysPhone CallCity 311
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