RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4422 locations in the last 30 days (4583 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20256321 W WARWICK AVEDunning38Completed10 daysMobile DeviceCity 311
10/10/20257411 N CLAREMONT AVEWest Ridge50Completed10 daysMobile DeviceCity 311
10/10/20252443 S KEDZIE AVESouth Lawndale25Completed7 daysMobile DeviceCity 311
10/10/20252846 W SUMMERDALE AVELincoln Square39Completed6 daysMobile DeviceCity 311
10/10/20252841 W SUMMERDALE AVELincoln Square39Completed6 daysMobile DeviceCity 311
10/10/2025130 E MONROE DRLoop42Completed4 daysInternetCity 311
10/10/20253856 W 83RD PLAshburn18Completed10 daysInternetCity 311
10/10/20254724 N ST LOUIS AVEAlbany Park33Completed11 daysMobile DeviceCity 311
10/10/20257816 S EMERALD AVEAuburn Gresham17Completed11 daysInternetCity 311
10/10/202510300 S BENSLEY AVESouth Deering7Completed11 daysPhone CallCity 311
10/10/20255016 N MANGO AVEJefferson Park45Completed10 daysMobile DeviceCity 311
10/10/20255847 N KENMORE AVEEdgewater48Completed10 daysMobile DeviceCity 311
10/10/20253900 W DIVISION STHumboldt Park37Completed7 daysInternetCity 311
10/10/2025919 N DAMEN AVEWest Town36Completed5 daysMobile DeviceCity 311
10/11/20255617 S NAGLE AVEGarfield Ridge13Completed9 daysInternetCity 311
10/11/20255612 S NARRAGANSETT AVEGarfield Ridge13Completed10 daysInternetCity 311
10/11/20255605 S NAGLE AVEGarfield Ridge13Completed9 daysInternetCity 311
10/11/20255607 S NAGLE AVEGarfield Ridge13Completed9 daysInternetCity 311
10/11/20255616 S NARRAGANSETT AVEGarfield Ridge13Completed10 daysInternetCity 311
10/11/20255606 S NARRAGANSETT AVEGarfield Ridge13Completed10 daysInternetCity 311
10/11/20257216 W IBSEN STEdison Park41Completed6 daysInternetCity 311
10/11/20254451 N SAWYER AVEAlbany Park33Completed10 daysMobile DeviceCity 311
10/11/202510931 S WESTERN AVEMorgan Park19Completed9 daysPhone CallCity 311
10/11/20253742 W 60TH PLWest Lawn23Completed10 daysPhone CallCity 311
10/11/20253525 N NEVA AVEDunning38Completed9 daysInternetCity 311
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