RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4423 locations in the last 30 days (4577 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/8/20256050 S SANGAMON STEnglewood16Completed10 daysPhone CallCity 311
5/29/20266050 S MERRIMAC AVEClearing13Completed3 daysMobile DeviceCity 311
1/2/2026604 W ADDISON STLake View46Completed2 daysInternetCity 311
8/25/2026604 S WESTERN AVENear West Side28Completed9 daysPhone CallCity 311
7/29/2026604 N ST LOUIS AVEHumboldt Park27Completed7 daysMobile DeviceCity 311
2/23/20266049 W MELROSE STDunning30Completed1 dayPhone CallCity 311
9/10/20256049 W MELROSE STDunning30Completed12 daysPhone CallCity 311
10/17/20256049 W MELROSE STDunning30Completed7 daysPhone CallCity 311
6/25/20266049 W 59TH STClearing13Completed5 daysMobile DeviceCity 311
10/31/20256049 W 59TH STClearing13Completed4 daysMobile DeviceCity 311
4/20/20266049 W 59TH STClearing13Completed1 dayAlderman's OfficeCity 311
1/5/20266049 S MAYFIELD AVEClearing13Completed1 dayPhone CallCity 311
9/15/20256049 S MAYFIELD AVEClearing13Completed9 daysAlderman's OfficeCity 311
9/15/20256049 S MAYFIELD AVEClearing13Completed9 daysAlderman's OfficeCity 311
1/12/20266049 S MAYFIELD AVEClearing13Completed1 dayInternetCity 311
1/14/20266049 S ARTESIAN AVEChicago Lawn16Completed1 dayPhone CallCity 311
1/13/20266049 S ARTESIAN AVEChicago Lawn16Completed1 dayPhone CallCity 311
1/12/20266049 S ARTESIANChicago Lawn16Completed1 daySalesforce Mobile AppCity 311
5/30/20266049 N KIMBALL AVENorth Park50Completed3 daysMobile DeviceCity 311
6/29/20266049 N BERNARD STNorth Park50Completed3 daysInternetCity 311
3/23/20266049 N ALBANY AVEWest Ridge50Completed1 dayAlderman's OfficeCity 311
10/4/20256048 W HIGGINS AVEJefferson Park45Completed11 daysInternetCity 311
6/30/20266048 S TRIPP AVEWest Lawn13Completed7 daysPhone CallCity 311
9/14/20256048 S KEELER AVEWest Lawn13Completed8 daysPhone CallCity 311
9/14/20266048 S KEELER AVEWest Lawn13Completed14 daysPhone CallCity 311
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