Though it's not the only unary county in the country
Kingston upon Hull (or 'Ull as it's called by us locals) became a unary county when Humberside reverted back to being East Yorkshire and North Linconshire. FACT.
(
pattybutty and chips,
Wed 22 Jan 2003, 14:12,
archived)
.
hurray, we got grimsby back!
(
Staticgirl,
Wed 22 Jan 2003, 14:19,
archived)
Well Brighton's a principality.
Or something.
(
Amerella,
Wed 22 Jan 2003, 14:22,
archived)