RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4498 locations in the last 30 days (4662 reports) · Last sighting 15 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/20255019 W DAKIN STPortage Park45Completed9 daysInternetCity 311
8/27/20254043 N MEADE AVEPortage Park38Completed1 dayPhone CallCity 311
8/19/20255647 W DAKIN STPortage Park38Completed9 daysPhone CallCity 311
9/11/20264139 N LONG AVEPortage Park38Completed14 daysInternetCity 311
8/19/20255654 W GRACE STPortage Park38Completed9 daysInternetCity 311
4/16/20265758 W EDDY STPortage Park30Completed5 daysPhone CallCity 311
8/17/20254832 W WARWICK AVEPortage Park30Completed9 daysMobile DeviceCity 311
8/17/20254218 N MASON AVEPortage Park38Completed9 daysMobile DeviceCity 311
7/6/20265528 W BERTEAU AVEPortage Park38Completed8 daysMobile DeviceCity 311
7/8/20264713 W PATTERSON AVEPortage Park30Completed8 daysInternetCity 311
9/22/20254738 W GRACE STPortage Park45Completed9 daysAlderman's OfficeCity 311
8/28/20254516 N MENARD AVEPortage Park38Completed12 daysPhone CallCity 311
4/16/20264822 W WAVELAND AVEPortage Park30Completed5 daysInternetCity 311
8/18/20255239 W PATTERSON AVEPortage Park30Completed1 dayPhone CallCity 311
9/29/20256247 W BERTEAU AVEPortage Park38Completed7 daysInternetCity 311
12/15/20255159 W CULLOM AVEPortage Park45Completed0 daysInternetCity 311
12/5/20255126 W GRACE STPortage Park30Completed4 daysMobile DeviceCity 311
8/27/20254439 N MOBILE AVEPortage Park38Completed13 daysMobile DeviceCity 311
12/12/20255928 W ROSCOE STPortage Park30Completed0 daysMobile DeviceCity 311
10/3/20254109 N LEAMINGTON AVEPortage Park38Completed7 daysMobile DeviceCity 311
7/7/20265803 W ADDISON STPortage Park30Completed9 daysMobile DeviceCity 311
8/17/20254208 N MONITOR AVEPortage Park38Completed9 daysInternetCity 311
4/15/20264817 W MONTROSE AVEPortage Park45Completed2 daysInternetCity 311
8/13/20255225 W HENDERSON STPortage Park31Completed13 daysMobile DeviceCity 311
4/25/20265354 W AGATITE AVEPortage Park45Completed4 daysInternetCity 311
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