RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4246 locations in the last 30 days (4399 reports) · Last sighting 20 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.

32080fewer → more

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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/20265842 W PATTERSON AVEPortage Park38Completed4 daysInternetCity 311
9/10/20265842 W GUNNISON STJefferson Park45Completed13 daysPhone CallCity 311
6/12/20265842 W GUNNISON STJefferson Park45Completed5 daysPhone CallCity 311
1/12/20265842 W 63RD PLClearing13Completed1 dayAlderman's OfficeCity 311
4/24/20265842 W 63RD PLClearing13Completed3 daysInternetCity 311
3/6/20265842 W 63RD PLClearing13Completed3 daysInternetCity 311
8/20/20265842 W 63RD PLClearing13Completed8 daysInternetCity 311
3/27/20265842 S SANGAMON STEnglewood16Completed3 daysMobile DeviceCity 311
5/27/20265842 S NEWCASTLE AVEGarfield Ridge13Completed2 daysInternetCity 311
9/24/20265842 S NEWCASTLE AVEGarfield Ridge13Completed12 daysInternetCity 311
2/23/20265842 S MEADE AVEGarfield Ridge13Completed1 dayInternetCity 311
12/10/20255842 S MEADE AVEGarfield Ridge13Completed1 dayInternetCity 311
11/26/20255842 S MEADE AVEGarfield Ridge13Completed6 daysPhone CallCity 311
8/20/20255842 N MASON AVEJefferson Park45Completed13 daysInternetCity 311
8/26/20265841 W SUPERIOR STAustin29Completed6 daysPhone CallCity 311
9/4/20265841 W OHIO STAustin29Completed13 daysInternetCity 311
4/22/20265841 S MOODY AVEGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
5/13/20265841 S MOODY AVEGarfield Ridge13Completed2 daysMobile DeviceCity 311
3/8/20265841 S MAYFIELD AVEGarfield Ridge13Completed1 dayPhone CallCity 311
10/15/20255841 N SPAULDING AVENorth Park39Completed9 daysInternetCity 311
4/13/20265841 N NAPOLEON AVENorwood Park41Completed3 daysPhone CallCity 311
8/16/20255840 W WAVELAND AVEPortage Park38Completed6 daysInternetCity 311
3/6/20265840 W CORNELIA AVEPortage Park30Completed3 daysMobile DeviceCity 311
10/1/20255840 W 64TH PLClearing13Completed8 daysInternetCity 311
8/31/20265840 S TRIPP AVEWest Elsdon13Completed14 daysInternetCity 311
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