Closer than most owners expect
The reassuring truth is that most lost dogs do not go far. A dog that slips a gate or backs out of a collar usually does what dogs do off the lead: he sniffs, explores, follows an interesting scent along a hedge, greets a dog behind a fence, and wanders in loops rather than striking out in one direction. Many are found within their own neighbourhood — on the same street, a few streets over, in a neighbour's garden, or sheltering under a car or porch close to home. Owners often drive straight past their own dog because they are searching a wide area at speed while the dog is moving slowly through a small one.
That is why the first search should be your immediate streets, done on foot, slowly, and more than once. Walk the routes your dog knows from daily walks, because familiar scent paths are the ones he is most likely to follow. Check the hiding geometry of a small area properly: under decks and vehicles, inside open garages and sheds, behind bins, and in the gaps between fences. Call, then stop and listen — a trapped or tangled dog may whine only once.
Temperament decides the distance
Personality matters more than breed. A confident, social dog often walks up to the first friendly person or follows another dog home, which keeps him local and findable. A shy or nervous dog does the opposite: he hides during the day, moves at quiet hours, and runs from strangers who call him — which means he may stay close to home yet remain unseen for days. Chasing is the single thing most likely to turn a near dog into a far one. A frightened dog pursued by strangers, cars, or other dogs can run a long way in a panic and end up genuinely distant from home, disoriented in unfamiliar territory.
Certain situations push distance too. A dog that bolts at fireworks or thunder may run blindly until the noise stops. An unneutered male who catches the scent of a female in season may travel purposefully and ignore calls he would normally answer. Elderly dogs and those with poor sight or mobility tend to travel least — they are often found stuck in a ditch, a creek edge, or dense garden growth very near home, unable to get back rather than unwilling.
Time widens the circle — slowly
If the first thorough local search finds nothing, widen the circle in rings rather than jumping to a distant guess: the surrounding streets, then the paths to places your dog loves — the park, a relative's house, a previous address. Dogs are often drawn back toward home at quiet times, especially overnight, so leaving a gate open with bedding and worn clothing outside, and checking at dawn, catches many returners. Each day missing justifies a slightly wider poster and door-knocking radius, but the home streets should be re-searched too, because dogs circle back into areas already checked.
Searching near first only works if people nearby know
The neighbours on those first streets are the search party that matters, provided they hear about the missing dog while he is still among them. Through KinsLe, his Lost Pet Alert System profile carries the alert at no cost and places it in map view; anyone who spots him can reach you through a direct message, so word reaches the right streets on day one.