Ansan has three immigration addresses, and the one you need depends on what you came to do. Two of them are a ten-minute walk from Gojan Station. The third is beside Ansan Station, at the other end of the city, and it handles most of what people actually come for.
Nobody publishes that split in English. The result is a wasted morning: the train to Gojan, the queue, and a counter that could have been reached from a station you already pass. This guide sorts the addresses by task, so the trip matches the errand.
It also covers the four cities beyond Ansan that this office serves, because a resident of Siheung or Anyang belongs here too.
What this guide covers
01
Three addresses, and what each one does
02
What finishes near Ansan Station
03
What needs the Gojan Station office
04
If you live in Siheung, Anyang, Gunpo or Gwangmyeong
05
How to reach each address
06
What to say at the counter
07
Frequently asked questions
Three addresses, and what each one does
Addresses and duties verified September 2026 · Ansan Immigration Office, Korea Immigration Service
The office publishes its own division of work by department. Read it as three doors rather than one building.
Where each task is handled
All three serve the same five cities
| Address |
What it handles |
Nearest station |
Gwangdeok 4-ro 96, 2F
광덕4로 96
Civil Service Center |
Residence, visas, nationality, certificates |
Gojan (고잔) |
Gwangdeok 4-ro 88, 5F
광덕4로 88
Main building |
Administration, investigation, immigration offences |
Gojan (고잔) |
Bubu-ro 43, 1F
부부로 43
Multicultural Migrant Plus Center |
Residence matters and certificates. No visa work |
Ansan (안산) |
The third row is the one that saves the trip. It sits inside the Ansan Foreign Resident’s Support Headquarters, five hundred meters from Ansan Station, and it shares that building with the free clinic for foreign workers and the city helpline in fourteen languages. One address, three services that would otherwise be three journeys.
The office itself was upgraded in March 2022, when what had been a branch of the Incheon immigration authority became an office in its own right. Anyang, Gunpo and Gwangmyeong moved into its district at that point, which is why older guides still send residents of those cities to Seoul or Suwon.
What finishes near Ansan Station
The Plus Center publishes its own list of duties, and it covers most routine residence work.
·
Alien registration (외국인등록) and overseas Korean residence reports (거소신고)
·
Granting, changing and extending a status of stay
·
Permission for activities outside your status, and adding or changing a workplace
·
Employment change reports for foreign workers
·
Issuing certificates
It is a joint counter rather than an immigration branch alone. Four bodies put staff in one place: the interior ministry, the justice ministry, the labor ministry and Ansan City. That is why the address belongs to a city building rather than to an immigration office.
There is one limit inside that list. Immigration offence work — reports, industrial accident cases involving foreign nationals, departure orders — is excluded and handled at the main office instead. Everything else on the list is a counter transaction that finishes on the day if your documents are in order.
What needs the Gojan Station office
Two categories do not transfer, and both are the kind of thing people assume they can do anywhere.
Visa work and nationality work are Gojan only
The Plus Center’s own notice says visa matters are handled at the immigration office. Nationality work — naturalization, renouncing or choosing nationality — sits with the Nationality and Visa Section there, along with confirmation of visa issuance applications.
Immigration offences are the other exception. Reports, industrial accident cases involving foreign nationals and departure orders are handled at the main building on Gwangdeok 4-ro 88, not at a Plus Center.
One more service is worth knowing at the Gojan address. The Social Integration Support Center there runs the marriage migrant orientation program, the Social Integration Program (KIIP) and the early adaptation program on 031-364-5767.
Booking before you travel decides whether the trip works at all, whichever of the three addresses you are heading to.
If you live in Siheung, Anyang, Gunpo or Gwangmyeong
This office is not only for Ansan. Its district covers five cities, and the Hi Korea jurisdiction lookup lists the same five for all of them.
The five cities, and your options
Ansan · Siheung · Anyang · Gunpo · Gwangmyeong
| Where you can go |
Detail |
| Ansan, Gwangdeok 4-ro |
Everything, including visas and nationality |
| Ansan Plus Center, Bubu-ro 43 |
Residence matters and certificates |
Siheung Plus Center
시흥시 공단1대로259번길 5, 2F |
Same duties as the Ansan Plus Center, and the same five cities |
That last row is not obvious from anywhere. A resident of Gwangmyeong or Anyang may find Siheung the easier journey, and the jurisdiction listing puts no restriction on choosing it.
How to reach each address
Two stations, two different lines of approach.
·
Gwangdeok 4-ro 88 and 96. Line 4 or the Suin-Bundang Line to Gojan Station (고잔역), exit 2, then 500 meters. The two buildings are next to each other.
·
Bubu-ro 43. Ansan Station (안산역), exit 1, cross the footbridge, about 500 meters. It is next to the Wongok-dong community service center.
·
Siheung. Jeongwang Station (정왕역), exit 1, then bus 20-1 or bus 30 from the transfer center, about ten minutes. On bus 20-1, get off at Jeongwang 119 Safety Center (정왕119안전센터). On bus 30, get off at Siheung Post Office Central Hospital (시흥우체국 센트럴병원).
For the main number, call 031-364-5705. The Civil Service Center on Gwangdeok 4-ro 96 answers on 031-364-5719, and the Social Integration Support Center on 031-364-5767. The immigration helpline on 1345 can also tell you which counter handles a given task, in twenty languages on weekdays.
What to say at the counter
These counters run in Korean. Show the Korean line on your phone, or read the romanized line aloud.
여기서 처리할 수 있나요?
Yeo-gi-seo cheo-ri-hal su in-na-yo?
“Can this be handled here?”
Ask this before you take a number, not after.
외국인등록 하러 왔습니다.
Oe-gu-gin-deung-nok ha-reo wat-seum-ni-da.
“I am here to register as a foreign resident.”
외국인등록 is the term on the application form.
체류기간 연장 신청하러 왔습니다.
Che-ryu-gi-gan yeon-jang sin-cheong-ha-reo wat-seum-ni-da.
“I am here to apply for an extension of stay.”
체류기간 연장 is the term used in the Immigration Act.
예약했습니다.
Ye-ya-kaet-seum-ni-da.
“I have a reservation.”
Say this at the entrance if you booked on Hi Korea.
사증 업무는 어디로 가야 하나요?
Sa-jeung eom-mu-neun eo-di-ro ga-ya ha-na-yo?
“Where do I go for visa matters?”
사증 is the legal word for a visa, not 비자.
Frequently asked questions
Can I go to the immigration office without an appointment in Korea?
Visit reservation has applied nationwide since April 2021, and same-day booking is not available. Check the booking rules for the service you need before you travel, because the answer differs by task and by office.
Ansan Station or Gojan Station?
Ansan Station for routine residence work: registration, extension, change of status, workplace changes, certificates. Gojan Station if your errand involves a visa, nationality, or an immigration offence. When in doubt, the Gojan office handles everything.
Why can the Plus Center not do visa work?
The published division of duties assigns visa matters to the immigration office itself, with the Nationality and Visa Section handling confirmation of visa issuance. The Plus Center notice states this directly rather than leaving it to be discovered at the counter.
I live in Anyang. Do I have to come to Ansan?
Anyang is inside this office’s district, so yes for visa and nationality work. For residence matters you have three counters to choose between: Gwangdeok 4-ro, the Ansan Plus Center and the Siheung Plus Center, all listed for the same five cities.
What are the opening hours?
The office pages give addresses, phone numbers and duties but not counter hours. Confirm on 031-364-5705, or on 1345, before you plan the trip.
Official sources
Every figure here comes from the pages below. Departments and addresses change, so open the page before you travel.
Information verified as of September 2026. Counter hours are not published on the office pages, so confirm on 031-364-5705 or 1345 before you travel, and book your visit in advance.
This site is not affiliated with the Korean government. Always confirm details with the official source.
