How long is my form taking?
USCIS publishes a range per form and per office. Both matter — the same form can differ by months depending on where it is being handled.
Forms decided at a local field office, where which office you are assigned to changes the answer by months.
N-600K — Application for Citizenship and Issuance of Certificate Under Section 322
5 to 6.5 months
Manchester NH
Estimated median
4.5 months
The published range is the slow tail, not the middle: USCIS's low figure is where about 80% of cases have finished and the high figure about 93%. So half of cases finish sooner than 4.5 months — three in four by 4.9, nine in ten by 6.4. An estimate from those two published anchors, not a figure USCIS publishes.
Kansas City MO
3.5–4 mo
Median about 3.3 mo · 75% by 3.5 mo · 90% by 4 mo
Fort Smith AR
5–5.5 mo
Median about 4.8 mo · 75% by 5 mo · 90% by 5.5 mo
Hialeah FL
5–5.5 mo
Median about 4.8 mo · 75% by 5 mo · 90% by 5.5 mo
Manchester NH
5–6.5 mo
Median about 4.5 mo · 75% by 4.9 mo · 90% by 6.4 mo
Helena MT
6–6.5 mo
Median about 5.8 mo · 75% by 6 mo · 90% by 6.5 mo
Columbus OH
6.5–7 mo
Median about 6.3 mo · 75% by 6.5 mo · 90% by 7 mo
Across 90 offices
- Fastest
- Kansas City MO3.5–4 mo
- Slowest
- Saint Louis MO65–65.5 mo (5.4–5.5 yrs)
Ranges are as published by USCIS: the low figure is where about 80% of cases have finished and the high figure about 93%. Confirm on Check on USCIS's processing times page.