RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4444 locations in the last 30 days (4607 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/29/20255430 W SCHOOL STPortage Park30Completed10 daysAlderman's OfficeCity 311
7/7/20268361 W SUMMERDALE AVENorwood Park41Completed10 daysPhone CallCity 311
9/14/2025307 W 29TH STArmour Square11Completed10 daysMobile DeviceCity 311
8/11/20255651 N MOODY AVENorwood Park45Completed10 daysAlderman's OfficeCity 311
8/18/20252933 W BALMORAL AVELincoln Square39Completed10 daysPhone CallCity 311
7/28/20251942 N KILBOURN AVEHermosa26Completed10 daysMobile DeviceCity 311
7/28/20254121 N MAPLEWOOD AVENorth Center47Completed10 daysPhone CallCity 311
7/11/20265611 N NAGLE AVENorwood Park45Completed10 daysMobile DeviceCity 311
8/15/20251742 N SPAULDING AVEHumboldt Park26Completed10 daysAlderman's OfficeCity 311
10/10/20252812 N WHIPPLE STAvondale35Completed10 daysInternetCity 311
9/16/20253021 N AVERS AVEAvondale31Completed10 daysPhone CallCity 311
7/18/20267710 W BELMONT AVEDunning38Completed10 daysInternetCity 311
8/3/20261424 N ORLEANS STNear North Side27Completed10 daysInternetCity 311
9/9/20252450 W PETERSONWest Ridge40Completed10 daysSalesforce Mobile AppCity 311
8/4/20251524 N ARTESIAN AVEWest Town1Completed10 daysInternetCity 311
9/22/2026614 W 43RD STNew City11Completed10 daysInternetCity 311
8/26/2025628 W BRIAR PLLake View44Completed10 daysPhone CallCity 311
10/5/20263829 N LAKEWOOD AVELake View44Completed10 daysPhone CallCity 311
8/24/20264150 N KENMORE AVEUptown46Completed10 daysInternetCity 311
7/27/20262008 S LOOMIS STLower West Side25Completed10 daysInternetCity 311
9/22/20255263 W JACKSON BLVDAustin29Completed10 daysPhone CallCity 311
10/6/20252730 N MONTICELLO AVELogan Square35Completed10 daysInternetCity 311
9/8/20251920 W WARNER AVENorth Center47Completed10 daysInternetCity 311
8/4/202510416 S LAWNDALE AVEMount Greenwood19Completed10 daysPhone CallCity 311
9/15/20262818 W 83RD STAshburn18Completed10 daysPhone CallCity 311
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