RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4409 locations in the last 30 days (4566 reports) · Last sighting 24 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/21/20262506 N MASON AVEBelmont Cragin30Completed2 daysPhone CallCity 311
4/18/20267748 S LUELLA AVESouth Shore7Completed2 daysInternetCity 311
6/14/20268514 S CRANDON AVESouth Chicago8Completed2 daysMobile DeviceCity 311
2/21/20263700 N SPAULDING AVEIrving Park33Completed2 daysInternetCity 311
6/16/20266623 S KOSTNER AVEWest Lawn13Completed2 daysMobile DeviceCity 311
11/5/2025721 W 50TH STNew City20Completed2 daysInternetCity 311
5/10/20263012 W 54TH STGage Park14Completed2 daysMobile DeviceCity 311
6/3/20261708 W WELLINGTON AVELake View32Completed2 daysInternetCity 311
2/7/20261310 N ASTOR STNear North Side43Completed2 daysInternetCity 311
10/8/2025849 E 40TH STOakland4Completed2 daysAlderman's OfficeCity 311
5/18/20269531 S PERRY AVERoseland9Completed2 daysMobile DeviceCity 311
9/3/20253804 N DRAKE AVEIrving Park35Completed2 daysInternetCity 311
12/24/20254900 W WASHINGTON BLVDAustin28Completed2 daysPhone CallCity 311
9/30/2025910 W 53RD STNew City20Completed2 daysMobile DeviceCity 311
3/24/20261210 E 69TH STGreater Grand Crossing5Completed2 daysInternetCity 311
4/20/20266507 S PAULINA STWest Englewood15Completed2 daysInternetCity 311
2/18/20266400 S WOLCOTT AVEWest Englewood16Completed2 daysPhone CallCity 311
3/17/20261903 W GARFIELD BLVDWest Englewood16Completed2 daysPhone CallCity 311
3/11/20263000 S KEELEY STBridgeport11Completed2 daysPhone CallCity 311
9/30/2025912 W 53RD STNew City20Completed2 daysMobile DeviceCity 311
5/6/202611312 S VINCENNES AVEMorgan Park19Completed2 daysPhone CallCity 311
12/1/20253336 W POTOMAC AVEHumboldt Park26Completed2 daysMobile DeviceCity 311
1/3/20263212 S NORMAL AVEBridgeport11Completed2 daysMobile DeviceCity 311
11/24/2025214 E 71ST STGreater Grand Crossing6Completed2 daysPhone CallCity 311
4/5/20264428 S SAWYER AVEBrighton Park12Completed2 daysMobile DeviceCity 311
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