RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4746 locations in the last 30 days (4904 reports) · Last sighting 11 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/5/2026900 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
11/9/20252311 W WASHINGTON BLVDNear West Side27Completed1 dayPhone CallCity 311
5/18/20264344 W MONROE STWest Garfield Park28Completed1 dayPhone CallCity 311
5/18/20263024 N NARRAGANSETT AVEBelmont Cragin36Completed1 dayPhone CallCity 311
1/22/20265104 W FLETCHER STBelmont Cragin31Completed1 dayPhone CallCity 311
6/8/20264455 S LOWE AVENew City15Completed1 dayPhone CallCity 311
6/15/20267525 S LANGLEY AVEGreater Grand Crossing6Completed1 dayInternetCity 311
4/30/20261924 W CHICAGO AVEWest Town36Completed1 dayPhone CallCity 311
11/18/20254952 W ERIE STAustin37Completed1 dayInternetCity 311
2/19/20262814 W 21ST STSouth Lawndale25Completed1 dayInternetCity 311
2/23/20265829 S FAIRFIELD AVEGage Park15Completed1 dayMobile DeviceCity 311
6/11/202611321 S WASHTENAW AVEMorgan Park19Completed1 dayMobile DeviceCity 311
1/8/20262735 W CATALPA AVELincoln Square40Completed1 dayMobile DeviceCity 311
5/14/20268103 S LOOMIS STAuburn Gresham17Completed1 dayPhone CallCity 311
3/9/20262627 N TALMAN AVELogan Square1Completed1 dayInternetCity 311
12/3/2025530 E 44TH PLGrand Boulevard3Completed1 dayInternetCity 311
7/23/20262818 S PRINCETON AVEArmour Square11Completed1 dayInternetCity 311
6/8/20265628 S WINCHESTER AVEWest Englewood15Completed1 dayPhone CallCity 311
6/10/20266245 W GRACE STDunning38Completed1 dayInternetCity 311
9/16/20254549 S MARSHFIELD AVENew City15Completed1 dayMobile DeviceCity 311
2/24/20265813 W MONTROSE AVEPortage Park38Completed1 dayInternetCity 311
4/12/20261636 W HOWARD STRogers Park49Completed1 dayInternetCity 311
6/1/202610521 S WALLACE STRoseland21Completed1 dayPhone CallCity 311
6/25/20269315 S CREGIER AVECalumet Heights8Completed1 dayPhone CallCity 311
10/28/20251910 W CORTLAND STLogan Square32Completed1 dayInternetCity 311
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