RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4688 reports) · Last sighting 16 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/1/20256023 S MOZART STChicago Lawn15Completed7 daysInternetCity 311
9/15/20266400 S HONORE STWest Englewood15Completed15 daysPhone CallCity 311
9/24/2026462 W 44TH STNew City15Completed8 daysInternetCity 311
7/29/20265900 S PAULINA STWest Englewood15Completed12 daysAlderman's OfficeCity 311
9/15/20264401 S WALLACE STNew City15Completed15 daysPhone CallCity 311
9/15/20266500 S WOOD STWest Englewood15Completed15 daysPhone CallCity 311
9/21/20265918 S FRANCISCO AVEChicago Lawn15Completed11 daysInternetCity 311
7/29/20266200 S HERMITAGE AVEWest Englewood15Completed12 daysAlderman's OfficeCity 311
7/31/20256225 S ALBANY AVEChicago Lawn15Completed8 daysMobile DeviceCity 311
7/29/20266100 S HERMITAGE AVEWest Englewood15Completed12 daysAlderman's OfficeCity 311
10/8/20266104 S WOOD STWest Englewood15Open—InternetCity 311
9/23/20265548 S FAIRFIELD AVEGage Park15Completed9 daysAlderman's OfficeCity 311
9/18/20264406 S HERMITAGE AVENew City15Completed13 daysAlderman's OfficeCity 311
7/29/20266000 S HERMITAGE AVEWest Englewood15Completed12 daysAlderman's OfficeCity 311
9/15/20266400 S PAULINA STWest Englewood15Completed15 daysPhone CallCity 311
9/21/20265847 S CALIFORNIA AVEGage Park15Completed11 daysPhone CallCity 311
7/31/2026601 W 48TH STNew City15Completed14 daysAlderman's OfficeCity 311
7/29/20265900 S HERMITAGE AVEWest Englewood15Completed12 daysAlderman's OfficeCity 311
8/1/20255731 S ARTESIAN AVEGage Park15Completed7 daysAlderman's OfficeCity 311
7/29/20266400 S RICHMOND STChicago Lawn15Completed12 daysMobile DeviceCity 311
10/9/2026539 W 45TH PLNew City15Open—Mobile DeviceCity 311
7/29/20266200 S WOOD STWest Englewood15Completed12 daysAlderman's OfficeCity 311
7/27/20264820 S UNION AVENew City15Completed8 daysPhone CallCity 311
7/28/2026458 W 46TH PLNew City15Completed7 daysPhone CallCity 311
9/21/20266445 S ALBANY AVEChicago Lawn15Completed10 daysMobile DeviceCity 311
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