RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4606 locations in the last 30 days (4753 reports) · Last sighting 14 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/24/20251409 N WELLS STNear North Side2Completed2 daysInternetCity 311
10/2/20251447 N DEARBORN STNear North Side2Completed8 daysPhone CallCity 311
7/8/20261519 N CLEVELAND AVENear North Side2Completed8 daysInternetCity 311
10/4/2025859 N DEARBORN STNear North Side42Completed2 daysInternetCity 311
11/29/202514 W ERIE STNear North Side42Completed2 daysMobile DeviceCity 311
5/5/20261308 N RITCHIE CTNear North Side43Completed1 dayMobile DeviceCity 311
4/26/20261168 N LA SALLE DRNear North Side27Completed2 daysInternetCity 311
10/1/20251560 N SANDBURG TERNear North Side2Completed9 daysInternetCity 311
8/22/2025119 W CHESTNUT STNear North Side2Completed13 daysAlderman's OfficeCity 311
11/30/2025328 W SCHILLER STNear North Side27Completed1 dayMobile DeviceCity 311
9/23/2025822 N CLARK STNear North Side2Completed6 daysPhone CallCity 311
12/18/2025225 W ONTARIO STNear North Side42Completed0 daysInternetCity 311
4/21/20261537 N HUDSON AVENear North Side2Completed2 daysInternetCity 311
8/19/202525 E DIVISION STNear North Side2Completed9 daysAlderman's OfficeCity 311
4/24/2026201 E ONTARIO STNear North Side2Completed3 daysAlderman's OfficeCity 311
5/6/20261445 N WELLS STNear North Side2Completed1 dayPhone CallCity 311
9/19/20251300 N STATE STNear North Side2Completed10 daysAlderman's OfficeCity 311
9/19/20251 E SCHILLER STNear North Side43Completed12 daysAlderman's OfficeCity 311
4/22/20261300 N LAKE SHORE DRNear North Side43Completed6 daysInternetCity 311
8/27/202524 W ERIE STNear North Side42Completed6 daysInternetCity 311
12/17/20251435 N WELLSNear North Side2Completed1 daySalesforce Mobile AppCity 311
9/18/2025310 W DIVISION STNear North Side2Completed11 daysInternetCity 311
9/4/20251508 N WIELAND STNear North Side2Completed1 dayPhone CallCity 311
9/3/202558 E ERIE STNear North Side42Completed4 daysMobile DeviceCity 311
8/22/2025119 W CHESTNUT STNear North Side2Completed6 daysAlderman's OfficeCity 311
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