RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4685 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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/15/20267136 S PAXTON AVESouth Shore5Completed9 daysPhone CallCity 311
11/15/20257136 S CARPENTER STEnglewood17Completed3 daysPhone CallCity 311
2/28/20267136 N WOLCOTT AVERogers Park49Completed3 daysPhone CallCity 311
6/7/20267135 W SUMMERDALE AVENorwood Park41Completed8 daysMobile DeviceCity 311
7/10/20267135 W SCHREIBER AVENorwood Park41Completed12 daysPhone CallCity 311
11/9/20257135 S CAMPBELL AVEChicago Lawn17Completed3 daysMobile DeviceCity 311
6/24/20267135 N MERRIMAC AVEForest Glen45Completed4 daysInternetCity 311
7/30/20267134 W SUMMERDALE AVENorwood Park41Completed8 daysMobile DeviceCity 311
8/18/20267134 W FARRAGUT AVENorwood Park41Completed1 dayMobile DeviceCity 311
3/16/20267134 S EAST EAST END AVESouth Shore7Completed2 daysAlderman's OfficeCity 311
10/29/20257134 S CARPENTER STEnglewood17Completed9 daysPhone CallCity 311
11/16/20257134 S CALIFORNIA AVEChicago Lawn18Completed1 dayInternetCity 311
9/24/20267133 W 63RD PLClearing13Open—Phone CallCity 311
8/25/20257133 S PERRY AVEGreater Grand Crossing6Completed2 daysPhone CallCity 311
9/4/20257133 S DOBSON AVEGreater Grand Crossing5Completed11 daysPhone CallCity 311
2/2/20267133 S CARPENTER STEnglewood17Completed0 daysInternetCity 311
9/22/20257133 N DAMEN AVERogers Park49Completed9 daysPhone CallCity 311
7/28/20267132 W FOSTER AVENorwood Park41Completed10 daysMobile DeviceCity 311
2/11/20267132 S TALMAN AVEChicago Lawn17Completed1 dayPhone CallCity 311
9/26/20267132 S SPRINGFIELD AVEWest Lawn23Completed6 daysPhone CallCity 311
11/10/20257132 S MOZART STChicago Lawn18Completed3 daysPhone CallCity 311
8/19/20257132 S EMERALD AVEEnglewood6Completed7 daysPhone CallCity 311
8/23/20267131 N MERRIMAC AVEForest Glen45Completed16 daysMobile DeviceCity 311
8/25/20267131 N MERRIMAC AVEForest Glen45Completed14 daysInternetCity 311
8/13/20257131 N MELVINA AVEForest Glen45Completed9 daysMobile DeviceCity 311
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