ImmigrationTimes.org

N-600 Processing Times

Application for Certificate of Citizenship

Normal

9.1 mo – 12.1 mo

avg. across all service centers

Current N-600 Processing Time

As of , USCIS N-600 (Application for Certificate of Citizenship) processing times average 9.1 mo to 12.1 mo across all service centers, with full range 3.0 mo to 52.5 mo depending on the service center and filing category. The fastest processing is at Cincinnati (3.0 mo). Processing times have been relatively stable over the past three months. Data is checked daily from official USCIS estimates.

We check daily — USCIS has not published new data since Apr 21, 2026.

Processing Time Trend

Upper bound of processing time range shown. Source: USCIS Processing Times.

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N-600 Processing Times by Service Center

90
Service Center Min Max Status
Cincinnati (CIN) Fastest 3.0 mo 4.0 mo Fast
Grand Rapids (GRR) 4.0 mo 5.0 mo Fast
Providence (PRO) 4.5 mo 5.0 mo Fast
Fort Smith (FSA) 4.5 mo 5.5 mo Fast
Manchester (MAN) 4.0 mo 5.5 mo Fast
San Jose (SAJ) 4.5 mo 5.5 mo Fast
San Fernando Valley (SFV) 4.0 mo 5.5 mo Fast
Atlanta (ATL) 4.5 mo 6.5 mo Fast
Charlotte (CHA) 4.0 mo 6.5 mo Fast
Charleston (CHL) 5.5 mo 6.5 mo Fast
Cleveland (CLE) 4.0 mo 6.5 mo Fast
Hialeah (HIA) 5.0 mo 6.5 mo Fast
Brooklyn (BNY) 5.0 mo 7.0 mo Fast
New Jersey (NJC) 5.5 mo 7.0 mo Fast
Omaha (OMA) 6.5 mo 7.0 mo Fast
Indianapolis (INP) 5.0 mo 7.5 mo Fast
Montgomery (MGA) 5.5 mo 7.5 mo Fast
Boise (BOI) 7.5 mo 8.0 mo Fast
Columbia (CLM) 4.0 mo 8.0 mo Fast
Dallas (DAL) 6.5 mo 8.0 mo Fast
Hollywood (HHW) 6.0 mo 8.0 mo Fast
Los Angeles (LOS) 6.0 mo 8.0 mo Fast
South New Jersey (SNJ) 7.0 mo 8.0 mo Fast
Baltimore (BAL) 6.5 mo 8.5 mo Fast
Hartford (HAR) 6.0 mo 8.5 mo Fast
Imperial (IMP) 6.5 mo 8.5 mo Fast
Louisville (LOU) 5.0 mo 8.5 mo Fast
Minneapolis (MTL) 7.0 mo 8.5 mo Fast
Newark (NEW) 7.0 mo 8.5 mo Fast
New York City (NYC) 7.0 mo 8.5 mo Fast
Philadelphia (PHI) 6.0 mo 8.5 mo Fast
Portland (POO) 5.5 mo 8.5 mo Fast
Queens (QNS) 7.0 mo 8.5 mo Fast
Raleigh (RAL) 5.5 mo 8.5 mo Fast
Detroit (DET) 6.5 mo 9.0 mo Fast
Stamford (STA) 8.5 mo 9.0 mo Fast
Kendall (KND) 6.0 mo 9.5 mo Normal
Los Angeles County (LAC) 8.0 mo 9.5 mo Normal
Norfolk (NOR) 8.0 mo 9.5 mo Normal
Tampa (TAM) 7.5 mo 9.5 mo Normal
Yakima (YAK) 7.5 mo 9.5 mo Normal
Christiansted (CHR) 9.5 mo 10.0 mo Normal
Charlotte (CLT) 8.0 mo 10.0 mo Normal
Long Island (LNY) 9.0 mo 10.0 mo Normal
Las Vegas (LVG) 9.5 mo 10.0 mo Normal
Pittsburgh (PIT) 7.5 mo 10.0 mo Normal
Sacramento (SAC) 8.0 mo 10.0 mo Normal
San Bernardino (SBD) 7.5 mo 10.0 mo Normal
St. Louis (STL) 8.0 mo 10.0 mo Normal
West Palm Beach (WPB) 9.0 mo 10.0 mo Normal
Office of Field Operations (OFM) 5.5 mo 10.5 mo Normal
Oakland (OKL) 6.5 mo 10.5 mo Normal
San Antonio (SAA) 9.0 mo 10.5 mo Normal
Santa Ana (SNA) 9.0 mo 10.5 mo Normal
Tucson (TUC) 8.0 mo 10.5 mo Normal
Albuquerque (ABQ) 10.5 mo 11.0 mo Normal
New Orleans (NOL) 8.0 mo 11.0 mo Normal
Washington DC (WAS) 8.0 mo 11.0 mo Normal
Wichita (WIC) 10.5 mo 11.0 mo Normal
Fresno (FRE) 9.5 mo 11.5 mo Normal
Orlando (ORL) 10.5 mo 11.5 mo Normal
Buffalo (BUF) 9.0 mo 12.0 mo Normal
Denver (DEN) 10.0 mo 12.5 mo Normal
Phoenix (PHO) 10.0 mo 12.5 mo Normal
Salt Lake City (SLC) 10.5 mo 12.5 mo Normal
Pomona (POM) 6.0 mo 13.0 mo Normal
Spokane (SPO) 10.0 mo 13.0 mo Normal
Houston (HOU) 9.5 mo 13.5 mo Normal
Oklahoma City (OKC) 11.0 mo 14.0 mo Normal
Augusta (AGA) 14.0 mo 14.5 mo Normal
St. Paul (SPM) 14.0 mo 14.5 mo Normal
Chicago (CHI) 13.5 mo 15.0 mo Normal
San Francisco (SFR) 9.5 mo 15.0 mo Normal
Lawrence (LAW) 7.5 mo 15.5 mo Normal
Helena (HEL) 16.0 mo 16.5 mo Normal
Milwaukee (MIL) 10.0 mo 16.5 mo Normal
Kansas City (KAN) 9.5 mo 17.0 mo Normal
Reno (REN) 17.0 mo 17.5 mo Normal
Harlingen (HLG) 6.5 mo 19.0 mo Normal
Albany (ALB) 18.5 mo 20.0 mo Normal
Des Moines (DSM) 10.0 mo 20.0 mo Normal
Jacksonville (JAC) 18.0 mo 20.0 mo Normal
Northern Texas (NTN) 15.0 mo 22.5 mo Slow
Anchorage (ANC) 19.0 mo 23.5 mo Slow
Miami (MIA) 11.5 mo 26.0 mo Very Slow
Seattle (SEA) 25.5 mo 26.0 mo Very Slow
San Diego (SND) 23.5 mo 27.5 mo Very Slow
Boston (BOS) 15.5 mo 31.0 mo Very Slow
Memphis (MEM) 33.5 mo 34.0 mo Very Slow
El Paso (ELP) 29.0 mo 52.5 mo Very Slow

Cite This Data

Citation

ImmigrationTimes.org. (2026). N-600 Processing Times (data as of Apr 21, 2026). Retrieved May 13, 2026, from https://immigrationtimes.org/forms/n-600/. Dataset DOI: 10.5281/zenodo.19529862

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Frequently Asked Questions

Current USCIS N-600 processing times range from 3.0 mo to 52.5 mo across all service centers (full range; average 9.1 mo–12.1 mo across centers) depending on the service center and filing category. This data is updated daily from USCIS official processing time estimates.

Based on current data, Cincinnati has the shortest N-600 processing times at 3.0 mo. See the full comparison in the table above.

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Source: U.S. Citizenship and Immigration Services (USCIS). Data aggregated from daily USCIS processing time snapshots. Data last updated . Permanent link.

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