"a town over" is correct and can be used in written English.
It typically describes a location that is relatively close to another. For example, you could say "My family moved to a town over last summer."
"Weta is basically a town over there in Wellington," laughs Reeves.
Ivanjek had traveled from Zadar, a town over 100 miles away, just for the evening.
"By the same token, at a town over the hill the RSL could be acting as an advocate for the Aboriginal community and making sure they get equal rights".
You can't necessarily skip triple-bypass surgery because you need to wait for your next paycheck or want to see if the guy in a town over will do it for less.
In the 8th grade my best friend K and I walked a mile and a town over to buy thongs at Mandee.
And as frogs croak by the river, a Syrian air force jet briefly enters Lebanese airspace before banking sharply and releasing two bombs on a town over the border.
Mr. Goodman's chutzpah has long received notice even in a town where over-the-top is the norm.
The sample unit of the survey is the individual, conducted on persons aged 16 or over and resident in a town of over 15,000 inhabitants.
Demonstrations that began in a university town over a sexual assault case ballooned into a larger outcry against the country's rampant crime and crippled economy.
The political agitators intend to overthrow the town council but Niklausse and Van Tricasse persuade them instead to attack a neighbouring town over an incident 700 years earlier involving a stray cow.
The FAA cowers like a sheriff in a town recently run over by the James Gang.
