The Beverly Hillbillies was sometimes cagey about pinning down exactly where the Clampetts had lived, usually referring to their home region simply as "the Hills." But it was generally understood to be the Ozarks (Southwestern Missouri and Northwestern Arkansas), specifically the town of Bug Tussle. A series of episodes around the middle of the run of the series saw the Clampetts returning to Silver Dollar City, which was (at the time) a new theme park near Branson, though it was treated as an actual town on the show. One of the preliminary titles of Petticoat Junction, a spinoff of The Beverly Hillbillies set near the Clampetts' original home, was Ozark Widow.
The Beverly Hillbillies - Season 1 Episode 1 - The Clampetts Strike Oil
Jefferson Davis Clampett
It is never explicitly stated in the series what state the Clampetts moved from, but several references to towns and counties indicate they were from the Ozarks, so they probably came from either Missouri or Arkansas.
The Clampetts from "The Beverly Hillbillies". Jed Clampett lived with his daughter Elly May, his mother-in-law "Granny" Daisy Moses, and his cousin's son Jethro Bodine.
While never clearly defined, it would appear- in line with Hollywood tradition that the Clampetts hailed from a backward region such as the Ozarks. Hillbillies implies mountainous terrain. The basic plot was overloaded with impossibilities- implausibilities and non-sequiturs, an essentially thirties plot ( including the old time truck)- updated to the fifties and sixties ( and modern cars shown) it just was- well impossible.
Duke
The Beverly Hillbillies - Season 1 Episode 1 - The Clampetts Strike Oil
The Beverly Hillbillies - 1962 The Clampetts in Washington - 9.2 was released on: USA: 22 September 1970
The Beverly Hillbillies - 1962 The Clampetts in Court 1-32 is rated/received certificates of: Australia:G
The Beverly Hillbillies - 1962 The Clampetts and the Dodgers 1-29 is rated/received certificates of: Australia:G
The Beverly Hillbillies - 1962 The Clampetts Are Overdrawn 2-8 is rated/received certificates of: Australia:G
The Beverly Hillbillies - 1962 The Clampetts Get Culture 2-13 was released on: USA: 18 December 1963
The Beverly Hillbillies - 1962 The Clampetts and the Dodgers 1-29 was released on: USA: 10 April 1963
The Beverly Hillbillies - 1962 The Clampetts in London 6-2 was released on: USA: 13 September 1967
The Beverly Hillbillies - 1962 The Clampetts Get Psychoanalyzed 1-33 was released on: USA: 8 May 1963
The Beverly Hillbillies - 1962 The Clampetts Go Hollywood 2-9 is rated/received certificates of: Australia:G
The Beverly Hillbillies - 1962 The Clampetts Strike Oil 1-1 is rated/received certificates of: Australia:G