RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4570 locations in the last 30 days (4750 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.

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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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/9/2026614 E 50TH PLGrand Boulevard20Completed4 daysInternetCity 311
5/31/2026142 W SWANN STFuller Park20Completed2 daysInternetCity 311
6/3/20266217 S LANGLEY AVEWoodlawn20Completed2 daysPhone CallCity 311
9/4/20255911 S PRINCETON AVEEnglewood20Completed11 daysPhone CallCity 311
6/21/20264919 S WASHINGTON PARK CTGrand Boulevard20Completed2 daysInternetCity 311
1/25/20266142 S ELLIS AVEWoodlawn20Completed3 daysInternetCity 311
6/21/20264914 S WASHINGTON PARK CTGrand Boulevard20Completed2 daysMobile DeviceCity 311
10/16/2025912 W 53RD STNew City20Completed4 daysMobile DeviceCity 311
2/3/20266227 S COTTAGE GROVE AVEWoodlawn20Completed1 dayMobile DeviceCity 311
5/18/20266112 S DR MARTIN LUTHER KING JR DRWashington Park20Completed3 daysPhone CallCity 311
6/2/20266354 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing20Completed1 dayInternetCity 311
2/17/2026644 E 51ST STGrand Boulevard20Completed0 daysMobile DeviceCity 311
5/20/2026540 W 61ST PLEnglewood20Completed1 dayInternetCity 311
5/7/2026706 E 51ST STGrand Boulevard20Completed5 daysMobile DeviceCity 311
9/2/20256640 S EVANS AVEWoodlawn20Completed13 daysMobile DeviceCity 311
2/9/2026329 W 61ST STEnglewood20Completed1 dayPhone CallCity 311
5/8/2026853 W 49TH PLNew City20Completed4 daysInternetCity 311
6/1/20266156 S INGLESIDE AVEWoodlawn20Completed2 daysMobile DeviceCity 311
6/4/2026660 E 51ST STGrand Boulevard20Completed1 dayMobile DeviceCity 311
6/4/20265106 S EMERALD AVENew City20Completed1 dayInternetCity 311
6/23/20266132 S CHAMPLAIN AVEWoodlawn20Completed2 daysPhone CallCity 311
10/16/2025910 W 53RD STNew City20Completed4 daysMobile DeviceCity 311
10/16/2025938 W 52ND STNew City20Completed4 daysMobile DeviceCity 311
5/29/20265337 S MARYLAND AVEHyde Park20Completed3 daysPhone CallCity 311
7/19/20265110 S UNION AVENew City20Completed11 daysInternetCity 311
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