RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4385 locations in the last 30 days (4551 reports) · Last sighting 16 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/10/20253859 N NORDICA AVEDunning38Completed10 daysInternetCity 311
7/3/20265807 N MARKHAM AVEJefferson Park45Completed10 daysInternetCity 311
10/10/20255016 N MANGO AVEJefferson Park45Completed10 daysMobile DeviceCity 311
7/12/20261206 N KEDZIE AVEHumboldt Park26Completed10 daysMobile DeviceCity 311
7/6/20263652 W 61ST PLWest Lawn23Completed10 daysAlderman's OfficeCity 311
8/19/20255824 S MONITOR AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
9/15/2026741 N PINE AVEAustin37Completed10 daysMobile DeviceCity 311
8/8/2025819 W 35TH PLBridgeport11Completed10 daysMobile DeviceCity 311
8/19/20255818 S MONITOR AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
9/12/20251515 N ARTESIAN AVEWest Town1Completed10 daysInternetCity 311
8/30/20259256 S PRAIRIE AVERoseland6Completed10 daysMobile DeviceCity 311
7/12/20266701 N NEWGARD AVERogers Park49Completed10 daysInternetCity 311
8/11/20256842 S TALMAN AVEChicago Lawn16Completed10 daysPhone CallCity 311
8/19/20255800 S MAYFIELD AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
7/12/20262028 W MOFFAT STLogan Square32Completed10 daysMobile DeviceCity 311
7/10/20262728 S CHRISTIANA AVESouth Lawndale22Completed10 daysMobile DeviceCity 311
9/29/20257115 W 63RD PLClearing13Completed10 daysPhone CallCity 311
9/2/20252840 N SOUTHPORT AVELake View32Completed10 daysInternetCity 311
8/8/2026333 W 25TH PLArmour Square11Completed10 daysPhone CallCity 311
7/29/20251642 S FAIRFIELD AVENorth Lawndale24Completed10 daysInternetCity 311
9/16/20252059 W JARVIS AVERogers Park49Completed10 daysMobile DeviceCity 311
9/13/20253414 N ELAINE PLLake View44Completed10 daysInternetCity 311
7/3/20265711 N MILWAUKEE AVEJefferson Park45Completed10 daysInternetCity 311
8/18/20254824 S JUSTINE STNew City20Completed10 daysPhone CallCity 311
8/25/20266034 W 55TH STGarfield Ridge23Completed10 daysAlderman's OfficeCity 311
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