RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4567 locations in the last 30 days (4756 reports) · Last sighting 9 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.

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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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/1/20267029 W HENDERSON STDunning38Completed3 daysPhone CallCity 311
11/25/20251727 W NEWPORT AVELake View47Completed3 daysMobile DeviceCity 311
9/1/20267648 S MAPLEWOOD AVEAshburn18Completed3 daysInternetCity 311
10/5/20257323 S EMERALD AVEEnglewood6Completed3 daysPhone CallCity 311
6/15/20261633 N ST LOUIS AVEHumboldt Park26Completed3 daysPhone CallCity 311
6/29/20265323 N NEW ENGLAND AVENorwood Park41Completed3 daysPhone CallCity 311
5/9/20262647 W WILCOX STEast Garfield Park27Completed3 daysPhone CallCity 311
1/9/20262814 W 21ST STSouth Lawndale25Completed3 daysInternetCity 311
12/5/20258200 S MARSHFIELD AVEAuburn Gresham17Completed3 daysPhone CallCity 311
6/20/20264726 N PAULINA STUptown47Completed3 daysMobile DeviceCity 311
10/4/20253920 N PINE GROVE AVELake View46Completed3 daysInternetCity 311
10/28/20254504 S WASHTENAW AVEBrighton Park12Completed3 daysInternetCity 311
10/6/20255412 S LOTUS AVEGarfield Ridge23Completed3 daysAlderman's OfficeCity 311
4/17/2026860 W ALDINE AVELake View44Completed3 daysInternetCity 311
12/27/20251626 W SUNNYSIDE AVEUptown47Completed3 daysPhone CallCity 311
4/28/20266111 W GRACE STDunning38Completed3 daysMobile DeviceCity 311
3/17/20263422 W DOUGLAS BLVDNorth Lawndale24Completed3 daysInternetCity 311
5/15/20262720 S QUINN STBridgeport11Completed3 daysPhone CallCity 311
3/9/20265009 N FRANCISCO AVELincoln Square40Completed3 daysInternetCity 311
12/5/20253800 S LOWE AVEBridgeport11Completed3 daysInternetCity 311
4/3/20263341 N SOUTHPORT AVELake View44Completed3 daysAlderman's OfficeCity 311
4/13/20262309 W ADDISON STNorth Center32Completed3 daysInternetCity 311
4/24/20262144 W SCHILLER STWest Town1Completed3 daysAlderman's OfficeCity 311
12/19/202510111 S LOWE AVEWashington Heights9Completed3 daysPhone CallCity 311
10/14/20255920 N AVONDALE AVENorwood Park41Completed3 daysMobile DeviceCity 311
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