South Dakota · sequential passenger map
South Dakota license-plate format
South Dakota mixes a county-style leading glyph with digits (9A9 999 in this atlas). In this atlas the pattern string uses A for a letter slot and 9 for a digit slot. Other characters are separators that appear on the metal but do not enlarge the combination space.
- Pattern
- 9A9 999
- Classes
- 1 letter + 5 digits
- Alphabet size
- 26
- Skipped letters
- none modelled
- Combination count
- 2,600,000
- Model year
- 2016
How the map works
Each A slot independently takes one glyph from ABCDEFGHIJKLMNOPQRSTUVWXYZ. Each 9 slot takes 0–9. The product of those bases is 2,600,000 — the size of the sequential space taught here. Hyphens, spaces and dots in 9A9 999 are display only.
Mount Rushmore plates retained a county flavour. The interleaved leading pair is the teaching serial.
Before this map, South Dakota used county 00A 123. Optional graphics (universities, military, environmental) can look nothing like the sequential passenger die and are not counted in the 2,600,000 figure.
A clean SPR 9932 letter block does not match South Dakota.
Generated versus issued
A string that fits 9A9 999 is in-class. It is not automatically an issued plate. Series can skip blocks, retire numbers, or reserve low digits. This essay never queries a motor-vehicle file. See also generated vs issued.