Ōta City (大田区), a special ward in the Tokyo Metropolis, is the largest of Tokyo's 23 wards by area, covering 59.46 square kilometers. Established in 1947 from the merger of Ōmori and Kamata, it has a population of approximately 744,849 as of 2024. Ōta is home to Haneda Airport, Japan's busiest airport, and notable neighborhoods such as Kamata and the upscale Den-en-chōfu. The ward boasts a mix of residential, commercial, and industrial areas, with landmarks including Ikegami Honmon-ji Temple and the Tamagawa River forming its southern boundary.

💻 City Official Website

Districts and Postal Codes in Ōta

Click on the district name for the complete Japanese address, the complete English address, how to write a Japanese address, the postal code, the map location, and more.

District Postal Code
Ikegami 〒146-0082
Ishikawachō 〒145-0061
Unoki 〒146-0091
Omorikita 〒143-0016
Omorinaka 〒143-0014
Omori Nishi 〒143-0015
Omori Higashi 〒143-0012
Omorihonchō 〒143-0011
Omori Minami 〒143-0013
Kamata 〒144-0052
Kamatahonchō 〒144-0053
Kamiikedai 〒145-0064
Kita Kōjiya 〒144-0032
Kita Senzoku 〒145-0062
Kita Magome 〒143-0021
Kita Minemachi 〒145-0073
Kugahara 〒146-0085
Keihinjima 〒143-0003
Sannō 〒143-0023
Shimomaruko 〒146-0092
Shōwajima 〒143-0004
Shinkamata 〒144-0054
Jōnanjima 〒143-0002
Tamagawa 〒146-0095
Chidori 〒146-0083
Chuo 〒143-0024
Denenchōfu 〒145-0071
Denenchōfuhonchō 〒145-0072
Denenchōfu Minami 〒145-0076
Tōkai 〒143-0001
Nakaikegami 〒146-0081
Nakamagome 〒143-0027
Nakakokugō 〒144-0055
Nishi Kamata 〒144-0051
Nishi Kōjiya 〒144-0034
Nishi Magome 〒143-0026
Nishi Minemachi 〒145-0075
Nishi Rokugō 〒144-0056
Haginaka 〒144-0047
Haneda 〒144-0043
Hanedaasahichō 〒144-0042
Hanedakukō 〒144-0041
Higashi Kamata 〒144-0031
Higashi Kōjiya 〒144-0033
Higashi Magome 〒143-0022
Higashi Minemachi 〒145-0074
Higashi Yaguchi 〒146-0094
Higashi Yukigaya 〒145-0065
Higashi Rokugō 〒144-0046
Furusatonohamabekōen 〒143-0007
Heiwajima 〒143-0006
Heiwanomoriyuen 〒143-0005
Honhaneda 〒144-0044
Minami Kamata 〒144-0035
Minami Kugahara 〒146-0084
Minami Senzoku 〒145-0063
Minami Magome 〒143-0025
Minami Yukigaya 〒145-0066
Minami Rokugō 〒144-0045
Yaguchi 〒146-0093
Yukigayaotsukamachi 〒145-0067
Reiwajima 〒135-0093

Start with the postal code, the prefecture, the city, the district, and then the number of the block and housing unit. Then end with the person’s name.
Here’s an example of how to write a Japanese address in English.
Ginza, Chuo-ku
Mr. Taro Tanaka

For more information on how to write a Japanese address, see this article.

To type the Japanese postal code, first type the character code '3012.' Then press ALT + X and Japan's postal code symbol will appear.

To obtain an address in Ōta for receiving mail, sign up for a virtual address service like MailMate. MailMate provides you with a mailing address for receiving Japanese mail and packages. MailMate can also be used for company registration in Ōta, along with mail handling for Japanese properties (e.g., akiya, Airbnb, minpaku, etc.)

There are two types of PO boxes available in Ōta. The first type of PO box is provided by Ōta Post and is only available for individuals with a daily volume of mail. The second type of PO box is provided by private services with no limits on daily mail volume. Learn more about how to open a PO box in Japan.

Japan Post offers Standard Mail for regular letters and small parcels, typically delivered in 2-3 days. Express Mail speeds this up to 1-2 days. Registered Mail adds tracking and insurance, requiring a signature on delivery. Yu-Pack handles larger parcels with tracking and insurance, delivered in 1-3 days. Letter Pack provides flat-rate options for documents and small items, with tracking available. EMS is for international express delivery, offering fast service to over 120 countries. Non-Standard Mail covers items exceeding standard size and weight limits. Private couriers like Yamato Transport's Takkyubin offer domestic and international parcel delivery with tracking. Sagawa Express provides similar services, including same-day delivery and refrigerated shipping. International couriers like DHL, FedEx, and UPS offer express delivery with tracking and insurance. Specialized services include Cool TA-Q-BIN for refrigerated items, Yu-Mail for books and CDs, and Smart Letter for small documents. These options cover varying needs for speed, cost, and security. For more information on international shipping options, check out this article.

To send mail or packages from Ōta to your home country using Japan Post, costs vary based on the service type and parcel weight. For Airmail, rates range from ¥2,050 for a 1kg parcel to ¥64,850 for a 30kg parcel. Surface Mail is cheaper, starting at ¥1,800 for a 1kg parcel to ¥21,000 for a 30kg parcel, but it takes longer. Factors affecting costs include weight, distance, and chosen service. Discounted rates are available for bulk shipments. For detailed rates and more information, visit the article here.

For sending mail and packages from Ōta via Japan Post, the weight limit is 30 kg for most services. The size restrictions include a maximum combined length and girth of 3 meters (300 cm). For smaller parcels, the combined length and girth should not exceed 2 meters (200 cm). Specific dimensions and weight limits may vary depending on the service chosen (Airmail, Surface Mail, etc.). For detailed information, refer to the article here.

To print an international parcel label for Japan Post, start by creating an account on Japan Post's International Mail My Page Service. Register both sender and recipient information, then select the desired shipping service, such as EMS or Airmail. Input the shipment details, including content description, shipping date, and parcel weight. After reviewing and confirming all entered information, use the provided printer icon to print the label. For more details, refer to this article.