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United States Cities Beginning with Letter U

Zip Code Map: U

Below please find the alphabetical list of U.S. cities that start with letter U. You may notice that some cities share exactly the same name but located within different states. For detail, please click on the link below to see zip codes of each city beginning with U.


Unalaska. It is a small town (geographic location: 53 ° 53′20 ″ N 166 ° 31′38 ″ W) on Unalaska Island and the neighboring island of Amaknak in the Aleutian Islands (Alaska). The city has a total area of 549.9 km². The number of residents registered in 2005 was 4,347. Almost all the port facilities are on Amaknak Island, better known as Dutch Harbor or simply Dutch as it is called by the crab fishermen of the Bering Sea. The port is connected to Unalaska by a bridge. The name "Unalaska" is probably a derivation of the Russian name "Ounalashka".


The island was discovered by Vitus Bering in 1741. In 1759 the Russians established themselves making a permanent settlement, but four years later it was destroyed by the Aleuts, along with four merchant ships. The massacre claimed the lives of 162 Russian settlers. The survivors managed to hold their position until 1764, when they were rescued by the Russians. This event provoked very bloody reprisals against the natives, which cost the lives of about 5,000 Aleuts.

The expedition of Esteban José Martínez and Gonzalo López de Haro of 1778 explored the coast of Alaska to Unalaska Island, marking the western end of what the Spanish explored in the region. In Moscow on May 31, 1988, President Ronald Reagan mentioned the meeting of Americans and Russians on this island in the 19th century as an example of long-standing friendship between the United States and Russia.

The 8 as December as 2004 A Malaysian cargo ship, the Selendang Ayu, ran aground on Unalaska Island, causing a large oil spill The Unalaska and Amaknak Islands had 24 settlements with more than 1,000 Aleutians in 1759. In 1768, Unalaska became in a Russian trading port for the sea industry. In 1825, the Russian Orthodox Church built a church in Unalaska. The priest, Ivan Veniaminov, composed the first Aleutian writing system with local help, and translated the holy scriptures into that language. During this time, (between 1830 and 1840), only 200 to 400 Aleuts lived in Unalaska. On June 3, 1942, during World War II, Unalaska was attacked by the Japanese. Most of the island's native residents were sent to Southeast Alaska during the war.


The island is located to the west of Akutan Island, from which it is separated by the Akutan Pass, and to the east of Umnak Island, from which it is separated by the Umnak Pass.

Unalaska is the second largest island in the Fox group of the Aleutian Islands. Unalaska's coastline is remarkably different in appearance than that of other large Aleutian islands, with countless inlets and peninsulas. The irregular coastline is broken by three long, deep bays: the Beaver Inlet, Unalaska Bay and the Bay of Makushin ; there are many more bays and smaller coves. Unalaska's terrain is rugged and mountainous, and for most of the year the highest peaks are covered with snow.2 Unalaska's name is of Aleutian origin and there are several theories about its origin, the most likely being the name comes from a deformation of the Russian word Unalashka.


In Unalaska, summers are short, cold and windy; winters are long, very cold, it is cloudy throughout the year. the temperature generally ranges from -1 ° C to 13 ° C and rarely drops below -6 ° C or rises above 17 ° C. Based on the tourism score, the best time of year to visit Unalaska for hot-weather activities is throughout the month of August.


The mild season lasts for 2.6 months, from June 30 to September 16, and the average daily maximum temperature is over 11 ° C. The hottest day of the year is August 14, with an average maximum temperature of 13 ° C and an average minimum temperature of 9 ° C. The cold season lasts 4.8 months, from November 26 to April 19, and the daily average maximum temperature is less than 4 ° C. The coldest day of the year is January 23, with an average minimum temperature of -1 ° C and an average maximum of 2 ° C


A wet day is a day with at least 1 millimeter of liquid or liquid-equivalent precipitation. The chance of wet days in Unalaska varies throughout the year. The wetter season lasts for 5.8 months, from September 1 to February 24, with a greater than 36% chance that a given day will be a wet day. The maximum chance of a wet day is 47% on December 17.

The drier season lasts for 6.3 months, from February 24 to September 1. The smallest chance of a wet day is 25% on May 5. Among wet days, we distinguish between those with only rain, only snow, or a combination of the two. Based on this categorization, the most common type of precipitation during the year is rain alone, with a maximum probability of 43% on November 10.


To show variation over a month and not just monthly totals, we show accumulated rainfall over a 31-day rolling period centered around each day of the year. Unalaska has a considerable variation of monthly rainfall by season. Rain falls throughout the year in Unalaska. Most of the rain falls during the 31 days centered around December 9, with an average total accumulation of 101 millimeters. The approximate date with the least amount of rain is April 25, with an average total accumulation of 44 millimeters.


Snow is reported in liquid equivalent terms. The actual depth of a new snowfall is generally 5 to 10 times the equivalent amount of liquid, assuming the ground is frozen. The coldest and driest snow tends to be towards the upper end of that range and the less cold and wetter snow towards the lower end. As with rain, we consider accumulated snow during a 31-day rolling period centered around each day of the year. The liquid equivalent snow accumulation in Unalaska varies slightly.

The snowy period of the year lasts for 4.7 months, from November 21 to April 11, with a liquid equivalent snowfall of at least 3 millimeters, in a sliding 31-day interval. The greatest amount of snow falls during the 31 days centered around January 27, with an average total liquid-equivalent accumulation of 17 millimeters. The snowless season lasts for 7.3 months, from April 11 to November 21. The least amount of snow falls around August 6, with an average total liquid-equivalent accumulation of 0 millimeters.


The length of the day in Unalaska varies extremely during the year. In 2018, the shortest day is December 21, with 7 hours and 24 minutes of natural light; the longest day is June 21, with 17 hours and 7 minutes of natural light. The earliest sunrise is 5:34 AM on June 17, and the latest sunrise is 3 hours 51 minutes later at 9:24 AM on December 29. The earliest sunset is 4:44 PM on December 13, and the latest sunset is 5 hours 58 minutes later at 10:41 PM on June 24. Daylight Saving Time (HDV) was observed in Unalaska during 2018; It began in the spring on March 11, lasted for 7.8 months, and was completed in the fall of November 4.


We base the comfort level of humidity on the dew point, as this determines whether sweat will evaporate from the skin, thereby cooling the body. When the dew points are lower it feels drier and when they are high it feels more humid. Unlike the temperature, which generally varies considerably between night and day, the dew point tends to change more slowly, so even though the temperature drops at night, on a humid day the night is generally humid. Unalaska's perceived humidity level, measured by the percentage of time that the humidity comfort level is muggy, oppressive, or unbearable, does not vary significantly throughout the year, and remains virtually constant at 0%.


This section deals with the hourly average wind vector of the wide area (speed and direction) at 10 meters above the ground. The wind from a certain location is highly dependent on the local topography and other factors; and the instantaneous wind speed and direction vary more widely than the hourly averages. The average hourly wind speed in Unalaska has extreme seasonal variations throughout the year. The windier part of the year lasts for 7.6 months, from September 13 to May 2., with average wind speeds of more than 25.2 kilometers per hour. The windiest day of the year on November 25, with an average hourly wind speed of 20 miles per hour. The calmer time of year lasts for 4.4 months, from May 2 to September 13. The calmest day of the year is July 18, with an average hourly wind speed of 11.0 miles per hour.

Water temperature

Unalaska is found near a large body of water (eg, ocean, sea, or large lake). This section reports the average water surface temperature of a wide area. Average water temperature has extreme seasonal variations throughout the year. The time of year when the water is warmer lasts for 2.4 months, from July 15 to September 28, with an average temperature above 8 ° C.

The day of the year when the water is warmest is August 21, with an average temperature of 9 ° C. The time of year when the water is coldest lasts for 4.6 months, from December 28 to May 16, with an average temperature below 5 ° C. The day of the year when the water is coldest is March 16, with an average temperature of 4 ° C.

The best time of year to visit

To describe how pleasant the weather is in Unalaska during the year, we calculated two scores for travel.

The tourism score favors clear, rainless days with perceived temperatures between 18 ° C and 27 ° C. Based on this score, the best time of year to visit Unalaska for general outdoor tourist activities is throughout the month of August, with a peak score in the third week of August. The beach / pool score favors clear days, without rain, with perceived temperatures between 24 ° C and 32 ° C. Based on this score, the best time of year to visit Unalaska is from August 10 to August 19


In 2005 Unalaska had 4,283 people, 834 houses, and 476 families residing in the city. The population density was 14.9 / km². 36.9% of the households had children under 18 years of age, 47.1% had married couples and 42.9% were households without a family. 32.0% of all households were made up of an individual and 1.6% had a single person over 65 years of age. The mean number of residents per household was 2.51 and the mean family size was 3.27 people.

By age, the population was made up of: 14.6% individuals under 18, 7.6% between 18 and 24 years, 50.9% between 25 and 44 years, 25.4% between 45 and 64 years, and 1.6% over 65 years. The average age was 36 years. For every 100 women there were 194.8 men and for every 100 women over the age of 18 there were 218.7 men. The median income per household in the city was USD 69,539, and the median income per family was USD 80,829. Men had an average income of USD 41,352 against USD 29,766 for women. About 2.0% of families and 12.5% of the population were below the poverty line, including 2.8% under the age of 18 and 15.8% of them were over the age of 18. 65 years. According to the 2010 census, there were 4,376 people residing in Unalaska.

The population density was 7.94 residents / km². Of the 4,376 residents, Unalaska was made up of 39.19% white, 6.86% were African American, 6.12% were Amerindian, 32.63% were Asian, 2.19% were Pacific Islanders, 7.4% were of other races and 5.6 % belonged to two or more races. Of the total population, 15.22% were Hispanics or Latinos of any race.


Unalaska Harbor is the main port and base of the Bering Sea crab fishing industry. It has been the largest fishing port in the United States in terms of the volume of shellfish caught, from 1981 to 2000, and in terms of value per catch. However, since 2000, the port of New Beford, Massachusetts, has surpassed it in that category.

A pilot project in the port of Unalaska is producing biodiesel from fish oil from the local fishing industry in conjunction with the University of Fairbanks Alaska. The economic use of fish oil is rare, and Alaskan communities are highly dependent on diesel power generation. Local factories generate 3.5 million tons of fish oil annually.


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