RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4601 locations in the last 30 days (4754 reports) · Last sighting 2 days 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.

32080fewer → more

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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/19/20261510 W BARRY AVELake View32Completed1 dayInternetCity 311
4/7/20268218 S HERMITAGE AVEAuburn Gresham17Completed1 dayInternetCity 311
6/3/20263935 N MOZART STIrving Park35Completed1 dayPhone CallCity 311
6/29/20265500 S DAMEN AVEWest Englewood16Completed1 dayPhone CallCity 311
6/10/20265654 S NEENAH AVEGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
1/5/20264619 S VINCENNES AVEGrand Boulevard3Completed1 dayPhone CallCity 311
2/18/20261432 N CAMPBELL AVEWest Town1Completed1 dayPhone CallCity 311
6/17/20264008 W 31ST STSouth Lawndale22Completed1 dayInternetCity 311
4/9/20261962 E 71ST PLSouth Shore5Completed1 dayAlderman's OfficeCity 311
11/5/20251030 N DEARBORN STNear North Side2Completed1 dayInternetCity 311
11/4/20254524 N PAULINA STUptown47Completed1 dayPhone CallCity 311
9/9/20254514 N WHIPPLE STAlbany Park33Completed1 dayPhone CallCity 311
5/21/20263759 S WELLS STArmour Square3Completed1 dayInternetCity 311
6/17/20264006 W 31ST STSouth Lawndale22Completed1 dayInternetCity 311
11/13/20251134 N LAWLER AVEAustin37Completed1 dayPhone CallCity 311
7/6/202610223 S ABERDEEN STWashington Heights21Completed1 dayInternetCity 311
5/6/202612854 S SANGAMON STWest Pullman9Completed1 dayInternetCity 311
6/4/20265106 S EMERALD AVENew City20Completed1 dayInternetCity 311
11/4/20253700 N SPAULDING AVEIrving Park33Completed1 dayMobile DeviceCity 311
8/24/20252449 W WALTON STWest Town36Completed1 dayMobile DeviceCity 311
11/20/20256200 W HENDERSON STDunning30Completed1 dayAlderman's OfficeCity 311
10/28/20253912 N SPAULDING AVEIrving Park33Completed1 dayMobile DeviceCity 311
7/20/20262538 W 117TH PLMorgan Park19Completed1 dayAlderman's OfficeCity 311
3/10/20261109 W 71ST STEnglewood17Completed1 dayInternetCity 311
9/22/20253734 W 70TH PLWest Lawn23Completed1 dayPhone CallCity 311
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