RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4571 locations in the last 30 days (4740 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/2/20269519 S COMMERCIAL AVESouth Deering10Completed2 daysInternetCity 311
8/18/20259519 S BISHOP STWashington Heights21Completed11 daysInternetCity 311
8/16/20259518 S PRAIRIE AVERoseland9Completed11 daysInternetCity 311
10/27/20259517 S EUCLID AVESouth Deering7Completed7 daysPhone CallCity 311
9/3/20269516 S LAFAYETTE AVERoseland9Completed8 daysInternetCity 311
12/30/20259515 S WOODLAWN AVEPullman8Completed0 daysMobile DeviceCity 311
9/3/20269515 S PERRY AVERoseland9Completed8 daysInternetCity 311
9/10/20269515 S MARQUETTE AVESouth Deering10Completed13 daysWalk-inCity 311
7/29/20259514 S YATES AVESouth Deering7Completed7 daysMobile DeviceCity 311
5/13/20269514 S OAKLEY AVEBeverly19Completed5 daysPhone CallCity 311
4/24/20269510 S CONSTANCE AVESouth Deering7Completed3 daysPhone CallCity 311
8/12/2026950 W WILLOW STLincoln Park43Completed14 daysMobile DeviceCity 311
10/27/2025950 W 33RD PLBridgeport11Completed2 daysInternetCity 311
8/4/2025950 W 33RD PLBridgeport11Completed4 daysInternetCity 311
8/1/2025950 N RIDGEWAY AVEHumboldt Park27Completed10 daysMobile DeviceCity 311
6/9/20269504 S HAMILTON AVEBeverly19Completed1 dayPhone CallCity 311
8/10/20269500 S COMMERCIAL AVESouth Deering10Completed14 daysAlderman's OfficeCity 311
3/16/2026949 W 51ST STNew City20Completed1 dayPhone CallCity 311
9/17/2026949 W 51ST STNew City20Open—Phone CallCity 311
7/31/2026949 W 51ST STNew City20Completed10 daysPhone CallCity 311
9/25/2025949 W 51ST STNew City20Completed7 daysPhone CallCity 311
9/16/2025949 N MONTICELLO AVEHumboldt Park27Completed13 daysMobile DeviceCity 311
5/3/2026949 N CENTRAL AVEAustin37Completed2 daysInternetCity 311
9/18/2026949 E 54TH PLHyde Park5Open—InternetCity 311
9/6/2026948 W WILLOW STLincoln Park43Completed10 daysMobile DeviceCity 311
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