Studying Abroad: How to Write Your Korean Address for US University Applications
August 23, 2026
Every year, thousands of Korean students apply to US universities — and a surprising number lose time scrambling over a seemingly simple question: How do I fill in my home address? Korean address structure is fundamentally different from the US format, and application portals like Common App don’t always make it obvious how to adapt. Enter the wrong format and you risk a confusing application — or worse, undeliverable mail.
This guide breaks down exactly how to convert your Korean address into the correct English format for every major US college application portal — step by step, field by field.
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Key Takeaways
- Always use the road name address (도로명주소), not the old land-lot (지번) system — it’s Korea’s official standard since 2014.
- Korean postal codes are 5 digits (e.g., 06757). The old 6-digit format is no longer valid.
- On application portals, set Country to “Korea, Republic of” — not just “Korea.”
- Apartment unit info (동·호) goes in Address Line 2, not Address Line 1.
- Use juso.go.kr to find the official Romanized English version of your Korean address instantly.
Why Address Format Matters in US College Applications
US universities use your home address for several purposes:
- Mailing official documents — acceptance letters, financial aid packages, and I-20 visa forms are often sent by post.
- Verifying identity and residency — admissions offices cross-reference address data when reviewing international applications.
- Geographic context — some universities track where their applicants come from for demographic reporting.
An address field left blank, formatted incorrectly, or entered in Korean characters (Hangul) can trigger a follow-up request from the admissions office — delaying your application review. Getting it right the first time matters.
Understanding Korean Address Structure
Korea operates two address systems, but only one is currently official for use in documents and applications:
| System | Korean Term | Status | Example |
|---|---|---|---|
| Road Name Address | 도로명주소 | ✅ Official (mandatory since 2014) | 55, Bangbaegongwon-ro, Seocho-gu, Seoul |
| Land-Lot Address | 지번주소 | ⚠️ Legacy (still widely recognized) | Seocho-dong 1321-1, Seocho-gu, Seoul |
According to the Ministry of Interior and Safety (MOIS), the road name address system became legally mandatory for all official documents in South Korea on January 1, 2014. For US university applications, always use the road name address — it’s the system that maps most cleanly onto Western address fields.
A typical Korean road name address has these components:
- Building number + Street name — e.g., 55, Bangbaegongwon-ro
- District (구/군) — e.g., Seocho-gu
- City or Metropolitan area — e.g., Seoul
- Country — Republic of Korea
- Postal code — 5-digit code, e.g., 06757
For apartment residents, there are two additional components: building number (동) and unit number (호), which typically go in Address Line 2 on US application forms.
How to Convert Your Korean Address to English
The most reliable way to get the correct English (Romanized) version of your address is to look it up directly on Korea’s official address portal.
Step 1 — Look Up Your Address on juso.go.kr
- Go to juso.go.kr (Korea’s official address information portal, operated by the Ministry of Interior and Safety).
- Click the English tab or switch to English mode.
- Type your Korean address in the search box.
- The portal returns the official Romanized English version of your road name address, including the 5-digit postal code.
Why juso.go.kr? The English names on this portal follow the Revised Romanization of Korean, the official standard set by the National Institute of Korean Language (국립국어원) and adopted by MOIS for all address signage. Using any other romanization (e.g., McCune-Reischauer) may produce spellings that don’t match your passport or ID documents.
Step 2 — Split the Address Into Application Fields
Once you have the English address, split it across the fields on your application form as follows:
| Application Field | What to Enter | Example |
|---|---|---|
| Address Line 1 | Building number + Street name | 55, Bangbaegongwon-ro |
| Address Line 2 | Apt complex name, Building (dong), Unit (ho) | Lotte Castle, 102-dong, 1501-ho |
| City | District (gu/gun) + City / Metro area | Seocho-gu, Seoul |
| State / Province | Leave blank for Seoul / Busan / Incheon; enter province name for other areas | (blank) or Gyeonggi-do |
| Country | Korea, Republic of | Korea, Republic of |
| ZIP / Postal Code | 5-digit Korean postal code | 06757 |
Need help converting your address? Jusome.com provides instant Korean-to-English address conversion, including the correct English format for each application field.
Step-by-Step Guide for Major Application Portals
Common App
Common App is used by more than 1,000 US colleges and universities. In the Profile → Contact Details section, you will find the following address fields:
- Address 1 — Enter your street address: building number + street name (e.g., 55, Bangbaegongwon-ro)
- Address 2 — Enter apartment complex name, dong, and ho (e.g., Lotte Castle 102-dong 1501-ho)
- City — Enter district and city (e.g., Seocho-gu, Seoul)
- State/Province — If you live in Seoul, Busan, Incheon, Daegu, or other metropolitan cities, you may leave this blank. For addresses in a province (도), enter the English province name (e.g., Gyeonggi-do).
- Country — Select Korea, Republic of from the dropdown
- ZIP / Postal Code — Enter your 5-digit postal code
Source: Common App official website (commonapp.org)
UC Application (University of California)
The UC Application (apply.universityofcalifornia.edu) has a nearly identical address structure to Common App. In the Personal Information → Contact Information section:
- Enter your street address (road name + building number) in the first address line
- Enter apartment details (dong/ho) in the second address line
- Set Country to South Korea (UC Application uses this name rather than “Korea, Republic of”)
- Enter your 5-digit postal code in the ZIP Code field
Coalition App / Scoir
The Coalition App (now managed by Scoir) uses a similar format. The address section includes fields for Street, City, State, ZIP Code, and Country. Follow the same field mapping as Common App above.
Individual University Portals
Some universities — including MIT, Georgetown, and many liberal arts colleges — use their own application portals. These typically follow the same field structure, but labels may vary slightly. If you see a single “Address” field, write the full address on one line in this order:
[Unit] [Building]-dong, [Complex Name], [Building Number] [Street Name]-ro, [District]-gu, [City], Republic of Korea [Postal Code]Korean Postal Code and Phone Number Format
Postal Code
Korea Post (epost.go.kr) introduced the current 5-digit postal code system on August 1, 2015, replacing the previous 6-digit system. All postal codes in South Korea are now exactly 5 digits.
- Format:
XXXXX(e.g., 03080 for Jongno-gu, Seoul) - To find your postal code: search your address on juso.go.kr or epost.go.kr
- Do not add a hyphen or leading zeros beyond the 5 digits
Phone Number
US university portals require phone numbers in international format. South Korea’s country code is +82.
| Local Korean Number | International Format for Applications |
|---|---|
| 010-1234-5678 (mobile) | +82-10-1234-5678 |
| 02-123-4567 (Seoul landline) | +82-2-123-4567 |
| 031-123-4567 (Gyeonggi landline) | +82-31-123-4567 |
Note: Always drop the leading 0 from the local area code when writing the international format.
Common Mistakes and How to Avoid Them
- Using Hangul characters — All fields on US application portals require English/Roman characters. Korean characters will either cause a submission error or require manual correction.
- Using the old land-lot (지번) address — The road name address is Korea’s official system. Use the new format from juso.go.kr.
- Entering a 6-digit postal code — Korea updated to 5-digit codes in August 2015. If you have an old code, look up the current one on juso.go.kr.
- Selecting the wrong country — “Korea” alone may not appear or may be ambiguous. Always confirm the dropdown shows “Korea, Republic of” or “South Korea.”
- Putting apartment details in Address Line 1 — Street address (building number + street name) belongs in Line 1. Dong/ho details go in Line 2.
- Not including the country code for phone — US portals expect international format. Always prefix with +82 and remove the leading 0.
Frequently Asked Questions
How do I write my Korean address in English for Common App?
Use the road name address (도로명주소). Put the street address (building number + street name) in Address Line 1, apartment details (dong/ho) in Address Line 2, your district and city in City, select “Korea, Republic of” as Country, and enter your 5-digit postal code. Use juso.go.kr to find the official Romanized version of your address.
What country name should I use for South Korea on college applications?
Select “Korea, Republic of” — this is the official UN designation. Common App and most US college portals use this name. Some portals (like UC Application) may list it as “South Korea” — both refer to the same country.
What is the format of Korean postal codes?
Korean postal codes (우편번호) are exactly 5 digits, introduced on August 1, 2015, by Korea Post. The previous 6-digit system is no longer valid. You can look up your current postal code at epost.go.kr or juso.go.kr.
How do I write my Korean phone number for US university applications?
Use the international format with country code +82. Remove the leading 0 from your local number. For example, 010-1234-5678 becomes +82-10-1234-5678.
Where can I find the official English version of my Korean address?
The official source is juso.go.kr, the address information portal operated by Korea’s Ministry of Interior and Safety. It provides Romanized English addresses following the official Revised Romanization standard — the same spelling used on street signs across Korea.
Conclusion
Filling in your Korean address for a US university application doesn’t have to be confusing. The key steps: use the official road name address from juso.go.kr, split it correctly across the address fields, select “Korea, Republic of” as your country, and use your current 5-digit postal code.
For instant Korean address conversion to English format, visit Jusome.com — our free tool helps you translate any Korean address into the correct English format ready to paste into any application portal.
Sources / 참고 자료
- juso.go.kr — Ministry of Interior and Safety Address Information Portal — Official Romanized Korean address lookup and road name address system reference
- commonapp.org — Common App Official Website — Address field structure for the Common Application used by 1,000+ US colleges
- apply.universityofcalifornia.edu — UC Application Portal — Address and personal information fields for University of California system applications
- epost.go.kr — Korea Post (우체국) — Official 5-digit postal code lookup and postal code system change announcement (August 2015)
- scoir.com — Scoir (Coalition App) — Address fields for Coalition Application platform
- law.go.kr — 도로명주소법 (Road Name Address Act) — Legal basis for Korea’s mandatory road name address system (effective 2014)
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What to do next
Guides for actually using your Korean address abroad.