RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4514 locations in the last 30 days (4687 reports) · Last sighting 14 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/26/20251314 W DIVERSEY AVELake View32Completed3 daysMobile DeviceCity 311
5/19/20262707 N MONT CLARE AVEMontclare29Completed3 daysMobile DeviceCity 311
5/17/20264920 W STRONG STForest Glen45Completed3 daysInternetCity 311
10/26/20254732 W WEST END AVEAustin28Completed3 daysInternetCity 311
4/10/20262723 S SPAULDING AVESouth Lawndale22Completed3 daysInternetCity 311
2/13/2026733 E 88TH PLChatham8Completed3 daysMobile DeviceCity 311
3/27/20265600 W CORNELIA AVEPortage Park30Completed3 daysAlderman's OfficeCity 311
10/28/20253367 S KING M L JR DRDouglas4Completed3 daysPhone CallCity 311
1/2/20261336 W NEWPORT AVELake View44Completed3 daysInternetCity 311
11/3/20257818 S INGLESIDE AVEGreater Grand Crossing8Completed3 daysInternetCity 311
6/8/20264835 S WINCHESTER AVENew City15Completed3 daysAlderman's OfficeCity 311
6/8/20265758 S MELVINA AVEGarfield Ridge13Completed3 daysMobile DeviceCity 311
6/2/20261539 N KEYSTONE AVEHumboldt Park26Completed3 daysInternetCity 311
5/9/20264156 N HARDING AVEIrving Park39Completed3 daysInternetCity 311
4/3/20265106 N SAYRE AVENorwood Park41Completed3 daysInternetCity 311
4/28/2026220 N LECLAIRE AVEAustin28Completed3 daysMobile DeviceCity 311
4/10/20261733 N SPAULDING AVEHumboldt Park26Completed3 daysInternetCity 311
1/2/20267546 S CONSTANCE AVESouth Shore8Completed3 daysPhone CallCity 311
4/28/202610766 S CHAMPLAIN AVEPullman9Completed3 daysInternetCity 311
4/19/20263400 N ASHLAND AVELake View47Completed3 daysPhone CallCity 311
5/19/2026100 E 71ST STGreater Grand Crossing6Completed3 daysPhone CallCity 311
4/10/20265847 N KENMORE AVEEdgewater48Completed3 daysMobile DeviceCity 311
4/19/20263506 N ASHLAND AVELake View47Completed3 daysPhone CallCity 311
10/26/20253438 N ASHLAND AVELake View47Completed3 daysMobile DeviceCity 311
5/18/20266112 S DR MARTIN LUTHER KING JR DRWashington Park20Completed3 daysPhone CallCity 311
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