RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4535 locations in the last 30 days (4689 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/27/20256419 S CARPENTER STEnglewood16Completed3 daysPhone CallCity 311
6/9/20261053 W 55TH STEnglewood16Completed2 daysPhone CallCity 311
9/10/20256332 S MAY STEnglewood16Completed9 daysMobile DeviceCity 311
3/11/2026452 W ENGLEWOOD AVEEnglewood20Completed5 daysMobile DeviceCity 311
9/21/20257253 S EMERALD AVEEnglewood6Completed3 daysInternetCity 311
3/21/20266719 S MORGAN STEnglewood16Completed3 daysPhone CallCity 311
3/25/20266000 S LA SALLE STEnglewood20Completed2 daysPhone CallCity 311
11/6/20257142 S PARNELL AVEEnglewood6Completed6 daysMobile DeviceCity 311
8/27/20265745 S PRINCETON AVEEnglewood20Completed13 daysPhone CallCity 311
6/8/20261107 W 59TH STEnglewood16Completed3 daysInternetCity 311
7/30/2025410 W MARQUETTE RDEnglewood6Completed7 daysInternetCity 311
10/24/20256330 S MAY STEnglewood16Completed5 daysMobile DeviceCity 311
10/24/20256332 S MAY STEnglewood16Completed5 daysMobile DeviceCity 311
7/24/20265500 S PRINCETON AVEEnglewood20Completed6 daysPhone CallCity 311
10/31/2025532 W 60TH PLEnglewood20Completed3 daysPhone CallCity 311
4/14/20261111 W 71ST STEnglewood17Completed1 dayInternetCity 311
3/11/2026536 W ENGLEWOOD AVEEnglewood20Completed5 daysMobile DeviceCity 311
6/16/20267343 S MAY STEnglewood17Completed8 daysInternetCity 311
3/11/2026552 W 61ST PLEnglewood20Completed5 daysPhone CallCity 311
8/28/20265736 S PRINCETON AVEEnglewood20Completed12 daysPhone CallCity 311
4/14/20261109 W 71ST STEnglewood17Completed1 dayInternetCity 311
3/10/2026538 W ENGLEWOOD AVEEnglewood20Completed1 dayMobile DeviceCity 311
9/18/20257058 S CARPENTER STEnglewood16Completed6 daysPhone CallCity 311
6/17/20265538 S PRINCETON AVEEnglewood20Completed6 daysMobile DeviceCity 311
8/7/20266530 S PEORIA STEnglewood16Completed11 daysPhone CallCity 311
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