RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4329 locations in the last 30 days (4493 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/17/20265443 W BYRON STPortage Park30Completed2 daysInternetCity 311
5/29/20264022 N LARAMIE AVEPortage Park38Completed4 daysPhone CallCity 311
10/5/20254123 N LECLAIRE AVEPortage Park38Completed11 daysInternetCity 311
1/26/20265354 W AGATITE AVEPortage Park45Completed2 daysInternetCity 311
9/2/20255134 W CULLOM AVEPortage Park45Completed10 daysInternetCity 311
5/29/20264562 N MELVINA AVEPortage Park38Completed4 daysPhone CallCity 311
6/22/20265718 W GIDDINGS STPortage Park45Completed3 daysMobile DeviceCity 311
9/22/20255338 W WILSON AVEPortage Park45Completed8 daysMobile DeviceCity 311
9/22/20254820 W SUNNYSIDE AVEPortage Park45Completed8 daysMobile DeviceCity 311
10/5/20254141 N LECLAIRE AVEPortage Park38Completed11 daysInternetCity 311
10/19/20255647 W BERENICE AVEPortage Park38Completed3 daysMobile DeviceCity 311
2/17/20265818 W NEWPORT AVEPortage Park30Completed1 dayMobile DeviceCity 311
5/11/20264144 N MELVINA AVEPortage Park38Completed2 daysPhone CallCity 311
5/28/20265231 W MELROSE STPortage Park30Completed6 daysAlderman's OfficeCity 311
5/28/20264930 W WAVELAND AVEPortage Park30Completed6 daysPhone CallCity 311
2/15/20265354 W AGATITE AVEPortage Park45Completed1 dayInternetCity 311
7/15/20265410 W CORNELIA AVEPortage Park30Completed9 daysPhone CallCity 311
5/13/20265906 W DAKIN STPortage Park38Completed2 daysPhone CallCity 311
10/5/20254328 N AUSTIN AVEPortage Park38Completed11 daysMobile DeviceCity 311
5/8/20264241 N LARAMIE AVEPortage Park45Completed3 daysAlderman's OfficeCity 311
5/8/20264747 W BYRON STPortage Park45Completed3 daysInternetCity 311
5/28/20265428 W SCHOOL STPortage Park30Completed6 daysPhone CallCity 311
5/28/20265428 W SCHOOL STPortage Park30Completed6 daysPhone CallCity 311
1/25/20263517 N CICERO AVEPortage Park30Completed2 daysPhone CallCity 311
1/23/20265307 W EDDY STPortage Park30Completed4 daysInternetCity 311
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