The wikipedia page gives many clues and references:

The Vogons' behaviour turns out to be "full of very human—and specifically English—flaws and tendencies"¹ to the point that Amanda Dillon considered them "probably the least othered alien in Adams's work"² The Vogons are an easily recognizable satire of human middle-management culture and bureaucracy.

Many things in the universe are based upon cartoonist James Gillray's work, who's famous for his satirical depiction of his era's flaws, both politically and socially.

Garth Jennings deliberately based his conception of the Vogons on the work of cartoonist James Gillray (1757–1815). "His creations were so grotesque...when we looked at them, we realised they were the Vogons"

^{1. Webb, Stephen (2017). "Engaging Aliens". All the Wonder that Would Be: Exploring Past Notions of the Future. Science and Fiction. Springer. pp. 102–103. Bibcode:2017awtw.book.....W. doi:10.1007/978-3-319-51759-9. ISBN 978-3-319-51758-2.}

^{2. Dillon, Amanda (2019). "The Hitchhiker's Guide to the Galaxy". In Levy, Michael M.; Mendlesohn, Farah (eds.). Aliens in Popular Culture. Greenwood. p. 153. ISBN 978-1-4408-3832-3.}

The wikipedia page gives many clues and references:

The Vogons' behaviour turns out to be "full of very human—and specifically English—flaws and tendencies"¹ to the point that Amanda Dillon considered them "probably the least othered alien in Adams's work"^{2 3 4} The Vogons are an easily recognizable satire of human middle-management culture and bureaucracy.

Many things in the universe are based upon cartoonist James Gillray's work, famous for his satirical depiction of his era's flaws, both politically and socially. According to these corroborative sources and personal understanding, it seems appropriate to conclude that Vogons are definately a satire of various aspects of the English society, but also a broader one, as we find these attributes in other countries. (Gillray's work was one of his time, depicting and mocking people and countries in Europe too). Like they did with Spitting image, you can use home and away inspiration.

Garth Jennings deliberately based his conception of the Vogons on the work of cartoonist James Gillray (1757–1815)⁵. "His creations were so grotesque...when we looked at them, we realised they were the Vogons"

^{1. Webb, Stephen (2017). "Engaging Aliens". All the Wonder that Would Be: Exploring Past Notions of the Future. Science and Fiction. Springer. pp. 102–103.}

^{2. Dillon, Amanda (2019). "The Hitchhiker's Guide to the Galaxy". In Levy, Michael M.; Mendlesohn, Farah (eds.). Aliens in Popular Culture. Greenwood. p. 153. ISBN 978-1-4408-3832-3.}

^{3. Van der Colff, Marilette (2010). One is Never Alone with a Rubber Duck: Douglas Adams's Absurd Fictional Universe. Cambridge Scholars. pp. 72–75. ISBN 9781443824385.}

^{4. Fatima, Zohra (2016). "Humor, Satire and Verbal Parody in The Hitchhiker's Guide to the Galaxy: A Relevance Theoretic Approach". NUML Journal of Critical Inquiry. 14 (2): 38–53}

^{5. British caricaturist and printmaker famous for his etched political and social satires. James Gillray}