RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4213 locations in the last 30 days (4369 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/1/20253539 W GRACE STIrving Park35Completed7 daysInternetCity 311
10/1/20255349 W DRUMMOND PLBelmont Cragin31Completed13 daysInternetCity 311
10/1/20251823 S TROY STNorth Lawndale24Completed5 daysPhone CallCity 311
10/1/20253811 N SPAULDING AVEIrving Park33Completed7 daysPhone CallCity 311
10/1/20252315 N AUSTIN AVEBelmont Cragin36Completed8 daysPhone CallCity 311
10/1/20254026 N LECLAIRE AVEPortage Park38Completed7 daysInternetCity 311
10/1/20251543 N CLEVELAND AVENear North Side2Completed9 daysInternetCity 311
10/1/20256053 W ARDMORE AVENorwood Park45Completed8 daysInternetCity 311
10/1/20256143 W PETERSON AVENorwood Park45Completed9 daysInternetCity 311
10/1/20253711 N SPAULDING AVEIrving Park33Completed7 daysInternetCity 311
10/1/2025901 N HARDING AVEHumboldt Park37Completed9 daysInternetCity 311
10/1/20253535 N RETA AVELake View44Completed8 daysInternetCity 311
10/1/20253701 N SPAULDING AVEIrving Park33Completed7 daysInternetCity 311
10/1/20252317 N LOCKWOOD AVEBelmont Cragin31Completed13 daysPhone CallCity 311
10/1/2025345 W 42ND STFuller Park3Completed1 dayPhone CallCity 311
10/1/20252558 W THOMAS STWest Town36Completed8 daysInternetCity 311
10/1/2025345 W 42ND PLFuller Park3Completed1 dayPhone CallCity 311
10/1/20252317 N LOCKWOOD AVEBelmont Cragin31Completed13 daysAlderman's OfficeCity 311
10/1/20252052 W FARGO AVERogers Park49Completed6 daysPhone CallCity 311
10/1/20253640 N OCTAVIA AVEDunning38Completed7 daysAlderman's OfficeCity 311
10/1/20256459 S KNOX AVEClearing13Completed8 daysAlderman's OfficeCity 311
10/1/20252756 W FULLERTON AVELogan Square1Completed0 daysPhone CallCity 311
10/1/20254540 N OAKLEY AVELincoln Square47Completed5 daysPhone CallCity 311
10/1/20259023 S UNIVERSITY AVEBurnside8Completed9 daysMobile DeviceCity 311
10/1/20256517 N CALIFORNIA AVEWest Ridge50Completed6 daysAlderman's OfficeCity 311
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