RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4449 locations in the last 30 days (4620 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20252704 S HILLOCK AVEBridgeport11Completed3 daysMobile DeviceCity 311
2/20/20264929 W ARGYLE STForest Glen45Completed3 daysMobile DeviceCity 311
3/9/20262435 N HALSTED STLincoln Park43Completed3 daysMobile DeviceCity 311
6/2/20261720 N WHIPPLE STHumboldt Park26Completed3 daysAlderman's OfficeCity 311
6/2/20267100 S DAMEN AVEWest Englewood17Completed3 daysPhone CallCity 311
4/17/20266105 S KENNETH AVEWest Lawn13Completed3 daysInternetCity 311
10/26/20253939 N SPAULDING AVEIrving Park33Completed3 daysPhone CallCity 311
6/22/20264540 S EVANS AVEGrand Boulevard4Completed3 daysMobile DeviceCity 311
10/19/20251242 W ALBION AVERogers Park49Completed3 daysInternetCity 311
11/7/20255319 W SUNNYSIDE AVEPortage Park45Completed3 daysPhone CallCity 311
3/21/202610751 S FOREST AVERoseland9Completed3 daysInternetCity 311
11/3/2025814 N DAMEN AVEWest Town36Completed3 daysInternetCity 311
11/28/20257509 N SHERIDAN RDRogers Park49Completed3 daysInternetCity 311
10/6/20251800 S SPRINGFIELD AVENorth Lawndale24Completed3 daysInternetCity 311
3/3/202611045 S ARTESIAN AVEMorgan Park19Completed3 daysInternetCity 311
11/14/20254516 N MENARD AVEPortage Park38Completed3 daysPhone CallCity 311
3/20/20269610 S CLAREMONT AVEBeverly19Completed3 daysPhone CallCity 311
5/9/202610627 S RIDGEWAY AVEMount Greenwood19Completed3 daysInternetCity 311
8/7/20262356 W HARRISON STNear West Side28Completed3 daysInternetCity 311
5/26/20262320 W LUNT AVEWest Ridge50Completed3 daysInternetCity 311
3/8/20266253 S MICHIGAN AVEWashington Park20Completed3 daysPhone CallCity 311
2/6/20265138 W CHICAGO AVEAustin37Completed3 daysPhone CallCity 311
1/9/20261010 W 20TH PLLower West Side25Completed3 daysInternetCity 311
2/20/20267519 S OGLESBY AVESouth Shore7Completed3 daysPhone CallCity 311
8/21/20268139 S MERRILL AVESouth Chicago8Completed3 daysPhone CallCity 311
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