Today's score
Ticks in Northfield, IL
Cook County
Moderate risk
Ticks are active. Use repellent, stick to trails, and do a tick check when you come inside.
Updated July 11, 2026
- Life stage
- Nymphs & adults
- Forest
- 59%
- Tick species
- 4 of 5 here
Right now
Latest reading- 79°
- Temperature
- 71%
- Humidity
- 0.0"
- Recent rain
TickZone for iPhone · launching soon
Know the evening before Northfield spikes.
7-day outlook
Risk recalculates daily from the local forecast.
What's active right now
Deer-tick nymphs are at their peak alongside dog-tick adults. Midsummer is the busiest stretch: nymphal deer ticks peak in the woods while American dog-tick adults are active in grass and along trails.
Local tick habitat
Northfield is 76% natural land cover (59% forest, plus open and brushy areas) across its 3.23 sq mi, home to about 5,543 people. That makes it the 10th-most wooded of the 119 towns in Cook County. Deer ticks live in wooded areas, along trail edges, and in tall grass: the more of that a town has, the more places ticks can quest.
Cook County reports about 2 Lyme cases per 100,000 people a year, the 0th-highest of 0 Midwest counties. That county-level disease pressure, combined with Northfield's local habitat, sets how high its daily score can climb when the weather and season allow.
Tick control in Northfield, IL
Do I need tick control in Northfield?
Tick activity in Northfield is moderate today (46/100). Ticks are out, especially along yard edges, leaf litter, and shady borders. A seasonal treatment plan keeps numbers down before peak weeks hit.
Professional tick control in Northfield typically means a barrier treatment along the lawn edge, leaf litter, stone walls, and shady borders where ticks wait for a host, applied two to four times a season by a licensed pest control company. It is the single most effective way to cut tick numbers in the part of the yard your family actually uses.
How much does tick control cost in Northfield?
Most homeowners pay about $100 to $200 per visit for professional tick spraying, or roughly $350 to $600 for a full season of barrier treatments, depending on lot size and how wooded the property is. Quotes are free, so it costs nothing to get a real number for your yard.
From a vetted local tick exterminator serving Northfield. No cost, no obligation.
Is it tick season in Northfield right now?
Yes. Deer-tick nymphs are at their peak alongside dog-tick adults. In Northfield, today's risk reads moderate (46/100). Ticks are active. Use repellent, stick to trails, and do a tick check when you come inside.
Nearby towns
Tick risk is local. Check the towns around you.
Stay ahead of ticks in Northfield
The TickZone iPhone app (launching soon) alerts you the evening before Northfield's risk spikes, so protection happens before the bite.