RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4429 locations in the last 30 days (4590 reports) · Last sighting 23 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.

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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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/19/20264118 N PARKSIDE AVEPortage Park38Completed10 daysPhone CallCity 311
7/28/20253649 N AVERS AVEIrving Park30Completed10 daysPhone CallCity 311
8/15/20253846 N TROY STIrving Park33Completed10 daysInternetCity 311
9/13/20256937 N HAMILTON AVEWest Ridge40Completed10 daysInternetCity 311
9/2/20253118 S HAMLIN AVESouth Lawndale22Completed10 daysMobile DeviceCity 311
9/19/20255004 W WAVELAND AVEPortage Park30Completed10 daysMobile DeviceCity 311
8/3/20255825 W AINSLIE STJefferson Park45Completed10 daysMobile DeviceCity 311
9/8/20253222 S RACINE AVEBridgeport11Completed10 daysAlderman's OfficeCity 311
6/26/20266635 S RHODES AVEWoodlawn20Completed10 daysPhone CallCity 311
9/1/202610014 S LASALLE STRoseland9Completed10 daysPhone CallCity 311
7/27/20262004 S LOOMIS STLower West Side25Completed10 daysInternetCity 311
10/12/20261714 N SAWYER AVEHumboldt Park26Completed10 daysMobile DeviceCity 311
9/7/20263711 W ADDISON STAvondale30Completed10 daysInternetCity 311
8/24/20263229 N NEWLAND AVEDunning36Completed10 daysPhone CallCity 311
7/24/20267500 S STATE STGreater Grand Crossing6Completed10 daysPhone CallCity 311
7/20/20266614 N DAMEN AVEWest Ridge40Completed10 daysPhone CallCity 311
7/28/20263756 N HARDING AVEIrving Park30Completed10 daysMobile DeviceCity 311
7/20/20267115 N DAMEN AVERogers Park49Completed10 daysPhone CallCity 311
9/27/20261958 N MAUD AVELincoln Park43Completed10 daysMobile DeviceCity 311
10/12/20261846 N RICHMOND STLogan Square26Completed10 daysInternetCity 311
8/4/20265159 S MULLIGAN AVEGarfield Ridge23Completed10 daysAlderman's OfficeCity 311
10/11/20265920 N AVONDALE AVENorwood Park41Completed10 daysMobile DeviceCity 311
8/10/20253304 N OAK PARK AVEDunning38Completed10 daysPhone CallCity 311
7/20/2026524 N LONG AVEAustin37Completed10 daysAlderman's OfficeCity 311
7/14/20262132 W 72ND PLWest Englewood17Completed10 daysInternetCity 311
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