Size This criterion is easy to deal with. There are many Adjectives that you know already and they can be really useful. If you want more variety

Sample Description
My city is huge and impressive. Its boundaries are limitless and you can walk all day without getting out of the city. You must be careful though because you can easily get lost because of its humongous size. Nevertheless, I really like my city. I cannot imagine myself living a narrow and cramped place. I would go mad!
Location

You can also give the exact location of your city or village to add more details to your description.
Examples

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  My city is located in the eastern part of our country.
  
• 
  I come from the southern region.
  
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  It is located in the north.
  
• 
  It’s in the south-east.
  
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  It can be found in the north-west.
  
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  It’s a northern city.
  
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  It lies by the sea.
  
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  It’s hidden in the mountains.
  
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  It’s in the central region.
  
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  It is found in the northernmost part of the country.
  
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  It is found in the southernmost part of the district.
  

Infrastructure

There is a thorough post on types of infrastructure here.
Sample Description
My village has heavily invested in infrastructure. I should say that I am proud of what our administrators have done so far. We have got an excellent transportation system. There is a huge train station which connects us to the rest of the country. Ours schools are some of the best in the region and we are planning to build a university. Additionally, we do not have to travel far in order to get specialist healthcare since we have built state-of-the-art clinics and hospitals.
Amenities
If you are asked to describe your city or village, you can also talk about the facilities or amenities that you have so as to make your life easier and enjoyabe.
Examples
Libraries: You can borrow books and DVDs here.
Cinemas: You can watch movies there.
Shopping malls: You can buy food, clothes, shoes and electronic devices.
Markets: You can buy food and houseware.
Bakeries: You can buy bread and other baked goods.
Butcheries: You can get yourself some meat.
Post Office: You can send letters and parcels.
Can you think of other places or services that enable you to live a healthy and satisfactory life in the village or city?
Adjectives

It is clever to use Adjectives to describe your city or village because they perfectly suit this purpose.
Here is a non-exhaustive list of Adjectives that you can use for your description:

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  Cosmopolitan
  
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  Expensive
  
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  Appealing
  
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  Perfect
  
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  Well-developed
  
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  Dangerous
  
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  Safe
  
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  Welcoming
  
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  Calm
  
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  Hectic
  
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  Enjoyable
  
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  Accessible
  
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  Connected
  
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  Isolated
  

Numbers
This can be one of the most revealing part. Are there 20, 000 people in your village or 2, 000, 000? How big is your city? Is there any important date that can give us more information about the history of your city? Doing a Google search or reading books can help you get all the facts that you need.